Thank you so much.i wouldn't have my huben gk1 if it was no because of your effort.thank you so much.i just got my huben gk1 yesterday.and i love it so much.
Gregor, I am so happy for you and for what you've done for the airgun community. Kudos also to Huben for embracing your creativity, and producing this pistol from your vision. I'm going to wait a while before buying the pistol. I want to see it regulated first. Keep on it, man!
It is virtually perfect to me. I put an aftermarket receiver plate on for a rear mounted red dot and that made a huge difference in accuracy for me. Pretty impressive to get 35-40 shots at 800-825 fps out of that small of a cylinder. Thank you Gregor!
If you take ur left hand and flip up the safety and wedge ur left thumb between the safety and the pressure gauge. Then Interlace ur right thumb over the left and you get a ROCK SOLID grip with fantastic stability. Oh; index finger underneath trigger guard squeezing up and the w the thumb, push on the gauge with ur thumb. Locks everything in tight. Took a long time to figure out what works the best as far as grip goes and this one has been the best so far.
Thank you for your great job.without you we wouldn't have this nice air pistol released so soon.i am also awaiting for this air pistol to be available in my area.thanks a lot.
I love everything about my GK1 and you Gregor are an inspiration to us all. My only tiny gripe with Huben (if I was to be really picky) is they should have made the rail a Picatinny instead of a Dovetail. 👍🏻
@@joeschmoe8320 Yes, I saw that and I also commented that I love it :) Although, I would love to seem milled version as I hate the look of 3d printed finish. Although, I assume that with time, we will have emulated 3d print finish like we now have carbon fiber emulated finish as a esthetics feature :)
Really nice job! Your pistol brought me back to airguns after 30 years..., even if it costs, in my country, the equivalent of US$ 4,200.00 a piece. Yes, you've 'heard' me right. Anyway, price tag apart, I just love it!
Looking forward for your tutorial to install one of the red dot sights sold in the Huben shop and also one comparing 3/4 different types of optics optimal for GK1
Got mine 1 month ago and had been shoot almost every other day. GK1 is a BEAST! Thank you Gregor. Now, when will we expect the > 120FPE GK2 to come out?
I suppose the K1 fill port would fit in the front of the air tube? Might get a bit to front heavy but if it is regulated the fill port/cap with pressure gauge would be useful? :-)
Yeah, plenty of option, but as you mentioned, K1 fill port with gauge will not only make the cylinder longer and front heavy but also reduce the air capacity as the GK1 end cap is completely hollow. There are ways to make a new fill port pars in the same position as it is now, install the regulator and route the air around it to the tube... But there would be no gauge for unregulated air in that case. Of course pressure gauge is important... but regulated pressure gauge can also be used to know where you are but only once the pressure is under the regulator setting...
@@gregorkamensek3923 I suppose one could either mount a gauge on the GK1 endcap if it is thick enough. Or make a new cap thick enough to recive a gauge. 🙂
@@thehaze1972You could just use the end cap with pressure gauge from K1. It is available as a separate unit: www.hubenairguns.shop/collections/parts/products/huben-analogic-gauge-kit This fits GK1 pistol and it also enables filling from the front side. It does slightly reduces the air capacity as it is not hollow like the original GK1 end cap...
Could you please do disassebly video pls? I heard e.g. there are two ways to degas (T15 screw or brass flat head ) not quite sure which one is correct. Thank you
Hi Gregor, Thank you so much for the informative videos. I have had the Huben k1 wood (22 Cal) for the last year and it has been a great experience. Unfortunately, I added a new silencer (moderator) and it blew off as I pulled the trigger. All the internals of the shroud blew off as well, including all the baffles. I am sure I require a new shroud. However, do you have a video on how to assemble the internals of the shroud?
I did not cover in the video but here is the oder from the back to the front side: plastic part that centres the barrel to the shroud; o-ring; metal spacer; washer .... you continue this till the end (not sure exactly how many spacers and washers there are), last one will be a washer and then the end cap is threaded on. Hope this helps
I do remember when you first presented the prototype and people started bombing you with purchase requests... finally came into production proving that tooth fairy exists. Having already shot 2500 rounds with mine (mainly your's designed casted huben slugs 5.55), I am more than happy with the design operating it at 20 fpe. Following your previous video on trigger adjustment I managed to solve the double shot problem... my gun is a dream now and feels safer. I do agree with you in relation to grip shape and lack of extended rail to the full end of the gun but these are solvable... From my point of view I would like a taller front sight, and a longer back sight for further distance. Extra goodies I am thinking for mine involves a heavy muzzle end with upward exhaust openings to better control rising of the barrel, and a light pistol red dot... Currently I practice shooting at 25-35 m standing, I want to be regulatly able shooting shot gun catridges at 40-55 m... Its great fun (especially I one casts his own ammo)
I have the reg set to 170 bars on my prototype. I get about 50 joules (37 fpe) max in .25 cal... the rule how to know the power you will get is if you take unregulated pistol / rifle and see what you get at the pressure you intend to set the regulator, and then if the plenum size is "appropriate", you will get about 80 - 90 % of that power...
Hello from Croatia! I'm a 10m air pistol shooter, that's my discipline. How accurate this pistol actually is if you compare it to well known brands like Walther, Steyr...etc.? I really like the mag. option and the pistol is very stylish and beautiful. I understand that this has a LOT of power, which is very tricky for high level precision shooting. Where in EU is this pistol available for purchase?
Pozdrav. Možemo na hrvaskem ili na engleskom:) Pistol can be set to any power required from about 10 j up to 100 joules or more. It is not regulated though and also, since it is sem auto, it shoots from the magazine. These two facts contribute to most of its inaccuracy. It is very accurate but I would not use it for competition shooting. Pistol might not be always available, you might need to preoder it. Here is the link you can but it from Spain: www.hubenairguns.shop/products/huben-pistol-gk1-gregor-kamensek-edition?sca_ref=3587936.uyi54wqA7j
Great juxtaposition review of your "original" GK1 versus the new production iteration! What are your thoughts on the loading mechanism? I think having the GK1 designed with a more accessible open gate version would have made loading much more easier and quicker. I'd be interested in your thoughts on some of the deeper mechanics and potential weak points, such as the tank being able to move about when the pressure is low; or any other weak materials that may need to be replaced with something more durable, such as the mag release lever breaking. But other than these issues and some others, I'm in firm agreement with you that this is an excellent pcp in its' first gen model and suspect Huben will improve on any moderate shortcomings in future iterations.
I will try to cover as much as possible on the disassembly video I plan to record. In my mind, there is one weak point of the Huben valve design (if we remove the safety issues I already discussed), that if the fact that it is shooting from the magazine. This is something I am mentioning all the time in videos, but is seems that there is not real interest in this. To be clear, this is an issue only concerning accuracy and also, it is not possible to make a gun/pistol that would produce these figures in semi auto any other way. So it is a necessary compromise but I feel that for a pistol, it is more than acceptable compromise. The fact that it is shooting out of the magazine simple means that most ammunition will spiral in flight and that it will be very pellet/slug and also alloy hardness picky. But for pistol, where you only typically shoot at about 20 meters, this effect will not be noticeable.
That is up to Huben, but there might be limitation due current pistol design. The magazine does not have much more space for bigger holes. Also, the valve system air pass through would start to be a limiting factor although that would not make much difference for a pistol barrel length. Huber would need to redesign the magazine and the action a little bit to be able to do so.
Not sure exactly what you expect to see in this kind of video, but I explained in in many videos and if you want confirmation, you can ask Huben as well. They don't hide the fact that they developed the pistol based on my idea. I contacted them shortly after I developed my prototype and suggested them to develop it. It took sime time for them to decide they will develop it and then they asked me not to reveal this to the public. We were in cooperation ever since although the final design was completely up to them. They also asked me to name the pistol and after a while (and with lack of imagination) I suggested GK1 considering they already have K1 rifle and this way, there are my initials in the name...
@@gregorkamensek3923 yeah I’m not doubting you mate, I just wonder if you made a video when it was first announced 😁 Would be fun to see your excitement
@@jackworsley2562 Sorry, I got defensive :). The first video I released was: ua-cam.com/video/0IJOB_ZNDr0/v-deo.html The reason why I don't sound excited because I was a bit disappointed because I asked Huben to allow me to make the first announcement but they did not and I actually learned that it is being released from other videos on youtube... I also did not get the pistols before anyone else in EU which was also after US...
😎He big fan and supporter here gregor So im having a problem with my huben gk ..I whas hoping you maybe could help me out on this ?? when I try to bleed of the pressure after filling the reservoir ..the tank loses its pressure through the bleeding hole on my compressor🤔 ..is it the closing valve ???. Or maybe my vevor compressor?? .. im learning as I go ..but yeah the Huben basically turned into an €1300- paper weight .I did have an airdump me being not aware under 100 bar feature..I shure am now 😂 But yeah the last time It filled up fine ...when i got it out of the box ..so maybe it has to do with the airdump??? Any advice would be welcome
Hi. If I understand correctly, when you finished filling the pistol with compressor, the air rushes back to the compressor before you have a chance to disconnect the hose? That could be a one way valve problem. Maybe you can try one thing: When you are finished with charging, bleed the hose very rapidly. Sometimes, the one way valve need a bit of a kick to close. I did not have this issue yet on GK1, but I had it on other guns.
I had a same problem with my brand new hatsan jet1, and I was using hand pump😂 until I consult with a guy he said some pcps specially brand new ones have this problem and said to close and open the bleed valve rapidly Back to back and the problem will be solved and I'd solved.but imagine my body pumping with hand pump simultaneously for 3 hours, I had to compete any Bodybuilding pro league.i was jacked like f...
@@ParKhalil-yr8rbYeah, I know how you feel. My first rifle was a 9 mm ShinSung Career ultra and I serviced that gun all the time while only using a hand pump :(
@@gregorkamensek3923 lol shure thats some workout he gregor if tried but nah it fills up just fine gauge needle rises as can be expected and as soon as I bleed of and depressurize the hose the tank fully empties aswell.. I tried and TRIED !!! ..to do it super rapid without luck..Real bummer im not shure if its the closing valve on my compressor ..or the Huben valve ???? ..😬but after examination I discovered Huben forgot to assemble some internal parts😕which they still have to send to me the intake valve cover and O-ring which caused a continues and barely noticeable leak from the fill hole ..Although it filled up fine when I took it out of the box some weeks back before the problem im having now with the bleeding of the hose pressure😞 ..bin waiting 6 months on this baby now this ???😵
I doubt if it has anything to to with o rings as they prevent the air to escape between the gaps of charging adaptor and your Pistols air tank both ways so you couldn't even let the air in if o rings were not OK or missing. Something internally in your gun isn't functioning.ask the the creator of gk1 to push his company 😉 to be responsible in quality control. I didn't expect a huben pistol has this problem as we always tackle with kral and hatsan and other Turkish Airguns this sort of problems. As I didn't buy hatsan sortie and settled with jet 1 because of these issues. 😔 My condolences
Can ANYONE tell me if there's a limit stop for the power adjustment screen? Or does it back out until it falls out? Or blows out under pressure? I am trying to find out just how far the power screw can be adjusted. I have a reconditioned GK1 .25 that seems weak even with the screwed bscked out 2-1/2 turns. I'm shooting 25gr pellets with a full fill yet only getting 720 FPS which is much less than others are claiming. Can I turn it out 3 turns? Out 3-1/2?
I believe I have explained this in the video. You can remove the screw fully and the pistol will still function but it might dump air at lower pressure because the valve is too opened. The screw will not go out because of the smaller hole in the grip, but it will clearly reach max opened state before that happens.
@@gregorkamensek3923 thank you for responding. So, in your experience, how many turns out is fully effective where going beyond that doesn't accomplish more. In other words at a point of diminishing return you shouldn't open it up any further, that's the point I'm looking for. Can I open it 3 1/2 turns? 4 turns? I have a chronograph and using the recommended 2-1/2 turns I'm getting +-750 FPS with .25, 26gr slugs. Obviously, that's pretty good but I was, as people do, want to get the most posdible. Recommendations?
@@bobjoatmon1993 I believe it is in the video but I would not go out over 2 revolutions (2 revolutions from fully closed). My favorite setting is about 1.5 revolutions from minimum. This still puts out significant power and you can get at lease 1 magazine from 300 bar fill... The adjusting screw has no more effect after about 3 revolutions. You can expect slight variations the information I provided because this adjusting screw is slightly different in every pistol but it should not be more than 1/4 of revolution.
Compressors for scuba tanks are typically able to go over 300 bars but they typically have built in safety valve at 300 or 330 bars. If that safety valve is replaced, they can go higher. The safety valve is there to protect your scuba tank/bottle, and those typically go to only 300 bars. I think finding a scuba tank that can be filled to more than 300 bars will be a bigger issue. But there is no need to fill to 350 bars (5000 PSI). The pistol if perfectly happy if you fill it to 300 bars or even less. The only time I filled it to 350 bars was to make the "power" video and I used Huben pump to do that. Otherwise, I just fill it up to 300 bars max from my scuba tank.
The Yong Heng compressor Is rated for 300 bar but the burst disc won't pop until about 400 bar so the few seconds it takes to fill from 300 to 350 bar every now and then is no problem. Been filling my K1 quite a few times and the only problem so far was that I found out that one of the couplings on the fill hose was not correctly crimped, it came loose and whipped my leg but the hose is thin and I don't bruise easily so it didn't even leave a mark. :-) The hose is rated at WP 630bar so no problem there. However I do not recommend doing this unless you are absolutely sure about what you are doing, due to the small volumes of air it is not very dangerous if you take the necessary precautions. It pumps pretty fast so the set pressure version is recommended as you can then adjust it higher bit by bit until it finally cuts at about 350bar. Or you can use the handpump from 300 to 350 bar, doesn't take many strokes to fill that little tank. :-)
Gregor, I was looking for a way to contact you directly, but no luck. I would love to see a teardown video of the GK1 as mine has developed a leak. I'll likely ease into it myself if I'm not able to find something. It's always nice to see it first in case there are any surprises.
Actually, that is the next video I intend to record but I am not sure if I will get around to it before next week. You can find my contact email under my youtube contact page...
Lol Gregor, you are pulling our legs I tried each and every way you have guided me to get your email all was dead ended. then an aha moment happened to me, he could have typed it rather and direct us to a loophole,cause he is polite and doesn't want a hustle of replying to emails.😂Who is gonna trust you after 3 years of lying to us about GK1😉lol. You may own the k as well🤔
Dear sir First of all I have to appreciate for your amazing source of information in the form of honest and professional videos in your channel specially about huben products.I want to consult with you and ask for your opinion as I want to buy my first huben k1 between mainly two items. First one is the in my city second hand airgunshop which offers a second hand 2021 synthetic model(unlike you I prefer synthetic) which they have a weird claim that it delivers 150 joules of energy.according to my last bargain they settle with the 1818 euros(without scope and cylinder..). The advantage of this option is the accessibility of dealer as I have purchased a tuned puncher breaker from them 3 months back which was an easy buy.I am gonna attach their pictures and a short video of it. Second option Is from a dealer living in another city who has 2023 models which the synthetic one is 1745 euros and a second hand of wooden special edition which I guess it's a 2021 model with price tag of 1618. In my first option I have to just call an Uber to go check with a chronograph and shoot 2 magazines(or any other examination you recommend) and Uber it back. But in 2023 cases I have to take a flight in morning travel for approximately 1.5 hours check the gun fly back and send the gun separately as I can't move it via air, which is gonna cost me 55 euros+.and extra risks. I appreciate in advance your kind consultation and advises.
Hi, I am a bit sceptical about the 150 joules claim. In my experiences, you can get 140 max... Maybe at over 200 bars on the regulator, it is possible... Regarding tests, make sure the regulator is operating properly, if possible chorny the shots to see consistency. Other than that, just obvious things like correct semi auto operation, no air dumps, no leaks (you will probably not get a chance to check for slow leaks...). Regarding which option, it is hard to say but if you don't have much experiences with servicing airguns or similar hand crafts, it is good to have a person how can do maintenance / service relative close by... Huben is a relative complex gun. I try to help people as much as I can remotely, but that has it limitations of course.
Thanks it was very helpful so I have to hit the nearest despite the thrill of risks to get my hand on 2023 model rather than 2021 one. It is tempting and another issue is the lack of pressure gauge on 2021 air tank. I may see it as an issue.I searched your name and surname to find any email address in your name to send the pictures and short videos of respected Airguns.the email was from a cargo like company. Something like car bones.😉
Dear Master Gregorkamensek I tried to find your email address in your UA-cam page, it is supposed to be in about section but it seems you don't have one, either I have gone totally blind or dumb or both as your neighbour slavoj Zizek once said it has to Come to me as a fall as an opening like fall in live as fall in your email address location lol
@@ParKhalil-yr8rbI believe you have to use computer, you go to my channel, click "more about this channel" by the picture and then "view email address".
This is not really semiautomatic. It is a revolver type mechanism.A fully semi automatic mechanism uses a blow back of gas to feed the next bullet into the chamber.
Actually, that is not true. Yes, the revolver action is not semi auto because even though you can continuously fire it by pulling the trigger (presuming it is a double action revolver), you actually rotate the cylinder and cock the hammer by pulling the trigger. But there are semi auto revolvers (firearms) on the market as well (although very rare). An example is Mateba Autorevolver. Huben GK1 is similar in operation to such revolver. GK1 "re-cocks" and rotates the magazine using the energy of the pressure from the magazine. Si it is a genuine semi auto operation (air operated) revolver.
The revolver type is like evanix hunter Master ar6p it's exactly what's you talking about or my funny artemis cp400. ua-cam.com/video/tD_vH8asVx8/v-deo.htmlsi=wt-G43qXJkNJ7miL
It's cool but not practical. Too big to carry and too small for home defense, too expensive to just keep in the car. Edit: Yeah, they took too long to release it. In that time, foldable stocks, and pistol air rifles came out.
Yeah, you are right in all points, but it was never meant to serve as a self defence carry pistol. If fact, US is one of the few parts of the world where that is even allowed :)
I really don't understand the UGLY trigger guard on the production model. They really messed it up there. It's not a deal breaker but a barrier to purchase as many would be hesitant to drop 2k on an ugly gun. Fix the trigger guard and it would look much nicer and tip over many people to purchase
Yeh, I had an issue with it at first as well, but now I am OK with it. Funny, I made a trigger guard like that 10 years ago on my semi auto airgun and I did not like it there either :)
@@gregorkamensek3923 that's because you have an eye for design as well as talent in engineering Gregor! I will buy one when they fix the trigger. I've talked to multiple enthusiasts about it and they all agreed no joke. It'd be nice if you could pass this onto Huben as they don't really listen to random customers like me. Appreciated as always man.
@@fizzleshizzle8314 I already passed it forward even before the pistol was released. They showed me a prototype picture and I made some suggestions. This was one of them. Actually, I in general suggested that all the design features that are angled from back side down towards front side up to be changed in different direction (also on the shroud). That would look more aggressive and I specially commented the trigger guard that also have this slope and I suggested a change...
@@gregorkamensek3923 I see you tried your best to make the production look as good as possible. I guess Huben has choices of their own but I myself am not going to purchase strictly due the bad design.. maybe I should gather a crowd on the forumns and pass on the opinions..
@@fizzleshizzle8314 I am sure that any manufacturer will listen to customers if there is a large enough base of potential users / customers that would like a specific change. Since there is no technical reason for the changes you suggest, all you need to do is to gather enough people and submit this to Huben and you will probably convince them to make V4 + with those changes. I wish you good luck. I can help you in the final stage when it needs to be presented to Huben.
Really nice job! Your pistol brought me back to airguns after 30 years..., even if it costs, in my country, the equivalent of US$ 4,000.00 a piece. Yes, you've 'heard' me right. Anyway, price tag apart, I just love it!
Thank you so much.i wouldn't have my huben gk1 if it was no because of your effort.thank you so much.i just got my huben gk1 yesterday.and i love it so much.
Gregor, I am so happy for you and for what you've done for the airgun community. Kudos also to Huben for embracing your creativity, and producing this pistol from your vision. I'm going to wait a while before buying the pistol. I want to see it regulated first. Keep on it, man!
Thanks.
It is virtually perfect to me. I put an aftermarket receiver plate on for a rear mounted red dot and that made a huge difference in accuracy for me. Pretty impressive to get 35-40 shots at 800-825 fps out of that small of a cylinder. Thank you Gregor!
👍
If you take ur left hand and flip up the safety and wedge ur left thumb between the safety and the pressure gauge. Then Interlace ur right thumb over the left and you get a ROCK SOLID grip with fantastic stability. Oh; index finger underneath trigger guard squeezing up and the w the thumb, push on the gauge with ur thumb. Locks everything in tight. Took a long time to figure out what works the best as far as grip goes and this one has been the best so far.
Thank you for your great job.without you we wouldn't have this nice air pistol released so soon.i am also awaiting for this air pistol to be available in my area.thanks a lot.
I love everything about my GK1 and you Gregor are an inspiration to us all. My only tiny gripe with Huben (if I was to be really picky) is they should have made the rail a Picatinny instead of a Dovetail. 👍🏻
Yeh, completely agree with you. I actually recommended them before they made the pistol to put Picatinny but they went with dovetail instead.
@@joeschmoe8320 Yes, I saw that and I also commented that I love it :) Although, I would love to seem milled version as I hate the look of 3d printed finish. Although, I assume that with time, we will have emulated 3d print finish like we now have carbon fiber emulated finish as a esthetics feature :)
Great job brother 🍻🍻🍻
Really nice job! Your pistol brought me back to airguns after 30 years..., even if it costs, in my country, the equivalent of US$ 4,200.00 a piece. Yes, you've 'heard' me right. Anyway, price tag apart, I just love it!
Thanks. Sorry to hear that about the price :(
Happy Xmas and New Year to you and yours. Thank you for all the wonderful videos.
Thank you very much. Same to you!
Amazing work George !!! Thanks for making the best pistol in the market, looking forward some upgrades in the future 👍
Thanks :)
Looking forward for your tutorial to install one of the red dot sights sold in the Huben shop and also one comparing 3/4 different types of optics optimal for GK1
👍
Got mine 1 month ago and had been shoot almost every other day. GK1 is a BEAST! Thank you Gregor. Now, when will we expect the > 120FPE GK2 to come out?
LOL. We will see what is possible :) Thanks.
good job man
Hard work pays......congratulations!!!!👍👍👍🇨🇱
Thank you!
GK1. Perfect name. 👍
:)
HELLO THERE GREGOR IS YOUR PISTOL GRIP SHORTER IN LENGTH FROM THE GK1 GRIP OR THE SAME SIZE
My grip is different positioned (higher) and is also a bit shorter...
I suppose the K1 fill port would fit in the front of the air tube? Might get a bit to front heavy but if it is regulated the fill port/cap with pressure gauge would be useful? :-)
Yeah, plenty of option, but as you mentioned, K1 fill port with gauge will not only make the cylinder longer and front heavy but also reduce the air capacity as the GK1 end cap is completely hollow. There are ways to make a new fill port pars in the same position as it is now, install the regulator and route the air around it to the tube... But there would be no gauge for unregulated air in that case. Of course pressure gauge is important... but regulated pressure gauge can also be used to know where you are but only once the pressure is under the regulator setting...
@@gregorkamensek3923 I suppose one could either mount a gauge on the GK1 endcap if it is thick enough. Or make a new cap thick enough to recive a gauge. 🙂
@@thehaze1972You could just use the end cap with pressure gauge from K1. It is available as a separate unit:
www.hubenairguns.shop/collections/parts/products/huben-analogic-gauge-kit
This fits GK1 pistol and it also enables filling from the front side. It does slightly reduces the air capacity as it is not hollow like the original GK1 end cap...
Hi Gregor !
can using the huben pump without a filter damage the gk1
and where the cylinder?
Hi. No, it should not under normal use. I use it without any filter.
Could you please do disassebly video pls? I heard e.g. there are two ways to degas (T15 screw or brass flat head ) not quite sure which one is correct. Thank you
Yes, I am wokring on that video...
Hi Gregor, Thank you so much for the informative videos. I have had the Huben k1 wood (22 Cal) for the last year and it has been a great experience. Unfortunately, I added a new silencer (moderator) and it blew off as I pulled the trigger. All the internals of the shroud blew off as well, including all the baffles. I am sure I require a new shroud. However, do you have a video on how to assemble the internals of the shroud?
I did not cover in the video but here is the oder from the back to the front side: plastic part that centres the barrel to the shroud; o-ring; metal spacer; washer .... you continue this till the end (not sure exactly how many spacers and washers there are), last one will be a washer and then the end cap is threaded on. Hope this helps
Congratulations
I do remember when you first presented the prototype and people started bombing you with purchase requests... finally came into production proving that tooth fairy exists. Having already shot 2500 rounds with mine (mainly your's designed casted huben slugs 5.55), I am more than happy with the design operating it at 20 fpe. Following your previous video on trigger adjustment I managed to solve the double shot problem... my gun is a dream now and feels safer. I do agree with you in relation to grip shape and lack of extended rail to the full end of the gun but these are solvable... From my point of view I would like a taller front sight, and a longer back sight for further distance. Extra goodies I am thinking for mine involves a heavy muzzle end with upward exhaust openings to better control rising of the barrel, and a light pistol red dot... Currently I practice shooting at 25-35 m standing, I want to be regulatly able shooting shot gun catridges at 40-55 m... Its great fun (especially I one casts his own ammo)
Thanks. I am happy that your trigger reset works properly now :) Also glad you are happy with my slugs.
@gregorkamensek3923 It would be nice if mp-molds could release version 3 also... me and my buddies we are unxious to try the new one...
i just got some new slugs and i had to giv them a little push to get them into magazine. Is that too tight? is there a way to test the bore?
That is actually good because they will not move around in the magazine
Say Gregor, if one set a regulator at say 170 bar, velocities wouldn't be close to the un-regualted GK1?
I have the reg set to 170 bars on my prototype. I get about 50 joules (37 fpe) max in .25 cal... the rule how to know the power you will get is if you take unregulated pistol / rifle and see what you get at the pressure you intend to set the regulator, and then if the plenum size is "appropriate", you will get about 80 - 90 % of that power...
Hello from Croatia! I'm a 10m air pistol shooter, that's my discipline. How accurate this pistol actually is if you compare it to well known brands like Walther, Steyr...etc.? I really like the mag. option and the pistol is very stylish and beautiful. I understand that this has a LOT of power, which is very tricky for high level precision shooting. Where in EU is this pistol available for purchase?
Pozdrav. Možemo na hrvaskem ili na engleskom:)
Pistol can be set to any power required from about 10 j up to 100 joules or more. It is not regulated though and also, since it is sem auto, it shoots from the magazine. These two facts contribute to most of its inaccuracy. It is very accurate but I would not use it for competition shooting. Pistol might not be always available, you might need to preoder it. Here is the link you can but it from Spain: www.hubenairguns.shop/products/huben-pistol-gk1-gregor-kamensek-edition?sca_ref=3587936.uyi54wqA7j
Hvalaa@@gregorkamensek3923 Pretpostavio sam da je tako. Iako je pistola vrlo primamljiva! Hvala za LINK. Good luck !
@@mrBrajac Nema na čemu i hvala :)
Great juxtaposition review of your "original" GK1 versus the new production iteration! What are your thoughts on the loading mechanism? I think having the GK1 designed with a more accessible open gate version would have made loading much more easier and quicker. I'd be interested in your thoughts on some of the deeper mechanics and potential weak points, such as the tank being able to move about when the pressure is low; or any other weak materials that may need to be replaced with something more durable, such as the mag release lever breaking. But other than these issues and some others, I'm in firm agreement with you that this is an excellent pcp in its' first gen model and suspect Huben will improve on any moderate shortcomings in future iterations.
I will try to cover as much as possible on the disassembly video I plan to record. In my mind, there is one weak point of the Huben valve design (if we remove the safety issues I already discussed), that if the fact that it is shooting from the magazine. This is something I am mentioning all the time in videos, but is seems that there is not real interest in this. To be clear, this is an issue only concerning accuracy and also, it is not possible to make a gun/pistol that would produce these figures in semi auto any other way. So it is a necessary compromise but I feel that for a pistol, it is more than acceptable compromise. The fact that it is shooting out of the magazine simple means that most ammunition will spiral in flight and that it will be very pellet/slug and also alloy hardness picky. But for pistol, where you only typically shoot at about 20 meters, this effect will not be noticeable.
We are all happy
👍
Are there any plans for higher calibers in the GK1 format?
That is up to Huben, but there might be limitation due current pistol design. The magazine does not have much more space for bigger holes. Also, the valve system air pass through would start to be a limiting factor although that would not make much difference for a pistol barrel length. Huber would need to redesign the magazine and the action a little bit to be able to do so.
A 177 would be awesome, imagine the shot count.
Haha forgot i posted this.. looks like my wish came true.
Is there a video where you reveal they have made your idea
Not sure exactly what you expect to see in this kind of video, but I explained in in many videos and if you want confirmation, you can ask Huben as well. They don't hide the fact that they developed the pistol based on my idea. I contacted them shortly after I developed my prototype and suggested them to develop it. It took sime time for them to decide they will develop it and then they asked me not to reveal this to the public. We were in cooperation ever since although the final design was completely up to them. They also asked me to name the pistol and after a while (and with lack of imagination) I suggested GK1 considering they already have K1 rifle and this way, there are my initials in the name...
@@gregorkamensek3923 yeah I’m not doubting you mate, I just wonder if you made a video when it was first announced 😁
Would be fun to see your excitement
@@jackworsley2562 Sorry, I got defensive :).
The first video I released was:
ua-cam.com/video/0IJOB_ZNDr0/v-deo.html
The reason why I don't sound excited because I was a bit disappointed because I asked Huben to allow me to make the first announcement but they did not and I actually learned that it is being released from other videos on youtube... I also did not get the pistols before anyone else in EU which was also after US...
@@jackworsley2562 The excitement was seen here, then I received them:
ua-cam.com/users/shortsFPZagQKOAbk
😁
😎He big fan and supporter here gregor So im having a problem with my huben gk ..I whas hoping you maybe could help me out on this ?? when I try to bleed of the pressure after filling the reservoir ..the tank loses its pressure through the bleeding hole on my compressor🤔 ..is it the closing valve ???. Or maybe my vevor compressor?? .. im learning as I go ..but yeah the Huben basically turned into an €1300- paper weight .I did have an airdump me being not aware under 100 bar feature..I shure am now 😂 But yeah the last time It filled up fine ...when i got it out of the box ..so maybe it has to do with the airdump??? Any advice would be welcome
Hi. If I understand correctly, when you finished filling the pistol with compressor, the air rushes back to the compressor before you have a chance to disconnect the hose? That could be a one way valve problem. Maybe you can try one thing: When you are finished with charging, bleed the hose very rapidly. Sometimes, the one way valve need a bit of a kick to close. I did not have this issue yet on GK1, but I had it on other guns.
I had a same problem with my brand new hatsan jet1, and I was using hand pump😂 until I consult with a guy he said some pcps specially brand new ones have this problem and said to close and open the bleed valve rapidly Back to back and the problem will be solved and I'd solved.but imagine my body pumping with hand pump simultaneously for 3 hours, I had to compete any Bodybuilding pro league.i was jacked like f...
@@ParKhalil-yr8rbYeah, I know how you feel. My first rifle was a 9 mm ShinSung Career ultra and I serviced that gun all the time while only using a hand pump :(
@@gregorkamensek3923 lol shure thats some workout he gregor if tried but nah it fills up just fine gauge needle rises as can be expected and as soon as I bleed of and depressurize the hose the tank fully empties aswell.. I tried and TRIED !!! ..to do it super rapid without luck..Real bummer im not shure if its the closing valve on my compressor ..or the Huben valve ???? ..😬but after examination I discovered Huben forgot to assemble some internal parts😕which they still have to send to me the intake valve cover and O-ring which caused a continues and barely noticeable leak from the fill hole ..Although it filled up fine when I took it out of the box some weeks back before the problem im having now with the bleeding of the hose pressure😞 ..bin waiting 6 months on this baby now this ???😵
I doubt if it has anything to to with o rings as they prevent the air to escape between the gaps of charging adaptor and your Pistols air tank both ways so you couldn't even let the air in if o rings were not OK or missing. Something internally in your gun isn't functioning.ask the the creator of gk1 to push his company 😉 to be responsible in quality control. I didn't expect a huben pistol has this problem as we always tackle with kral and hatsan and other Turkish Airguns this sort of problems. As I didn't buy hatsan sortie and settled with jet 1 because of these issues. 😔 My condolences
Can ANYONE tell me if there's a limit stop for the power adjustment screen? Or does it back out until it falls out? Or blows out under pressure?
I am trying to find out just how far the power screw can be adjusted. I have a reconditioned GK1 .25 that seems weak even with the screwed bscked out 2-1/2 turns. I'm shooting 25gr pellets with a full fill yet only getting 720 FPS which is much less than others are claiming.
Can I turn it out 3 turns? Out 3-1/2?
I believe I have explained this in the video. You can remove the screw fully and the pistol will still function but it might dump air at lower pressure because the valve is too opened. The screw will not go out because of the smaller hole in the grip, but it will clearly reach max opened state before that happens.
@@gregorkamensek3923 thank you for responding. So, in your experience, how many turns out is fully effective where going beyond that doesn't accomplish more. In other words at a point of diminishing return you shouldn't open it up any further, that's the point I'm looking for. Can I open it 3 1/2 turns? 4 turns?
I have a chronograph and using the recommended 2-1/2 turns I'm getting +-750 FPS with .25, 26gr slugs. Obviously, that's pretty good but I was, as people do, want to get the most posdible.
Recommendations?
@@bobjoatmon1993 I believe it is in the video but I would not go out over 2 revolutions (2 revolutions from fully closed). My favorite setting is about 1.5 revolutions from minimum. This still puts out significant power and you can get at lease 1 magazine from 300 bar fill... The adjusting screw has no more effect after about 3 revolutions. You can expect slight variations the information I provided because this adjusting screw is slightly different in every pistol but it should not be more than 1/4 of revolution.
@@gregorkamensek3923 thank you very much for providing this answer
Is there a compressor out there that can fill this thing too the max pressure of 5000psi? Greetz.
Compressors for scuba tanks are typically able to go over 300 bars but they typically have built in safety valve at 300 or 330 bars. If that safety valve is replaced, they can go higher. The safety valve is there to protect your scuba tank/bottle, and those typically go to only 300 bars. I think finding a scuba tank that can be filled to more than 300 bars will be a bigger issue.
But there is no need to fill to 350 bars (5000 PSI). The pistol if perfectly happy if you fill it to 300 bars or even less. The only time I filled it to 350 bars was to make the "power" video and I used Huben pump to do that. Otherwise, I just fill it up to 300 bars max from my scuba tank.
@@gregorkamensek3923 aah ok, thanks.
The Yong Heng compressor Is rated for 300 bar but the burst disc won't pop until about 400 bar so the few seconds it takes to fill from 300 to 350 bar every now and then is no problem. Been filling my K1 quite a few times and the only problem so far was that I found out that one of the couplings on the fill hose was not correctly crimped, it came loose and whipped my leg but the hose is thin and I don't bruise easily so it didn't even leave a mark. :-) The hose is rated at WP 630bar so no problem there. However I do not recommend doing this unless you are absolutely sure about what you are doing, due to the small volumes of air it is not very dangerous if you take the necessary precautions. It pumps pretty fast so the set pressure version is recommended as you can then adjust it higher bit by bit until it finally cuts at about 350bar. Or you can use the handpump from 300 to 350 bar, doesn't take many strokes to fill that little tank. :-)
@@thehaze1972 good info thanks
@@thehaze1972Yep, that is what I do if I want that max power; I fill to 300 bars with scuba tank and then top up with hand pump...
Gregor, I was looking for a way to contact you directly, but no luck. I would love to see a teardown video of the GK1 as mine has developed a leak. I'll likely ease into it myself if I'm not able to find something. It's always nice to see it first in case there are any surprises.
Actually, that is the next video I intend to record but I am not sure if I will get around to it before next week. You can find my contact email under my youtube contact page...
Lol Gregor, you are pulling our legs I tried each and every way you have guided me to get your email all was dead ended. then an aha moment happened to me, he could have typed it rather and direct us to a loophole,cause he is polite and doesn't want a hustle of replying to emails.😂Who is gonna trust you after 3 years of lying to us about GK1😉lol. You may own the k as well🤔
@@ParKhalil-yr8rbLOL. People are contacting me on it all the time :) Here it is: stonemorek(at)gmail.com
Thanks Mr GK1🙏
@@ParKhalil-yr8rb :)
sweet
👊
Dear sir
First of all I have to appreciate for your amazing source of information in the form of honest and professional videos in your channel specially about huben products.I want to consult with you and ask for your opinion as I want to buy my first huben k1 between mainly two items.
First one is the in my city second hand airgunshop which offers a second hand 2021 synthetic model(unlike you I prefer synthetic) which they have a weird claim that it delivers 150 joules of energy.according to my last bargain they settle with the 1818 euros(without scope and cylinder..). The advantage of this option is the accessibility of dealer as I have purchased a tuned puncher breaker from them 3 months back which was an easy buy.I am gonna attach their pictures and a short video of it.
Second option Is from a dealer living in another city who has 2023 models which the synthetic one is 1745 euros and a second hand of wooden special edition which I guess it's a 2021 model with price tag of 1618.
In my first option I have to just call an Uber to go check with a chronograph and shoot 2 magazines(or any other examination you recommend) and Uber it back. But in 2023 cases I have to take a flight in morning travel for approximately 1.5 hours check the gun fly back and send the gun separately as I can't move it via air, which is gonna cost me 55 euros+.and extra risks.
I appreciate in advance your kind consultation and advises.
Hi, I am a bit sceptical about the 150 joules claim. In my experiences, you can get 140 max... Maybe at over 200 bars on the regulator, it is possible... Regarding tests, make sure the regulator is operating properly, if possible chorny the shots to see consistency. Other than that, just obvious things like correct semi auto operation, no air dumps, no leaks (you will probably not get a chance to check for slow leaks...). Regarding which option, it is hard to say but if you don't have much experiences with servicing airguns or similar hand crafts, it is good to have a person how can do maintenance / service relative close by... Huben is a relative complex gun. I try to help people as much as I can remotely, but that has it limitations of course.
Thanks it was very helpful so I have to hit the nearest despite the thrill of risks to get my hand on 2023 model rather than 2021 one. It is tempting and another issue is the lack of pressure gauge on 2021 air tank. I may see it as an issue.I searched your name and surname to find any email address in your name to send the pictures and short videos of respected Airguns.the email was from a cargo like company. Something like car bones.😉
@@ParKhalil-yr8rb LOL. BTW: you can find my email in contact section of my UA-cam page.
Dear Master Gregorkamensek
I tried to find your email address in your UA-cam page, it is supposed to be in about section but it seems you don't have one, either I have gone totally blind or dumb or both as your neighbour slavoj Zizek once said it has to Come to me as a fall as an opening like fall in live as fall in your email address location lol
@@ParKhalil-yr8rbI believe you have to use computer, you go to my channel, click "more about this channel" by the picture and then "view email address".
This is not really semiautomatic. It is a revolver type mechanism.A fully semi automatic mechanism uses a blow back of gas to feed the next bullet into the chamber.
Actually, that is not true. Yes, the revolver action is not semi auto because even though you can continuously fire it by pulling the trigger (presuming it is a double action revolver), you actually rotate the cylinder and cock the hammer by pulling the trigger. But there are semi auto revolvers (firearms) on the market as well (although very rare). An example is Mateba Autorevolver. Huben GK1 is similar in operation to such revolver. GK1 "re-cocks" and rotates the magazine using the energy of the pressure from the magazine. Si it is a genuine semi auto operation (air operated) revolver.
The revolver type is like evanix hunter Master ar6p it's exactly what's you talking about or my funny artemis cp400.
ua-cam.com/video/tD_vH8asVx8/v-deo.htmlsi=wt-G43qXJkNJ7miL
I would rather have it like you made yours…REGULATED.😉
:)
Is that Zelenski?😂😂😂
It's cool but not practical.
Too big to carry and too small for home defense, too expensive to just keep in the car.
Edit:
Yeah, they took too long to release it. In that time, foldable stocks, and pistol air rifles came out.
Yeah, you are right in all points, but it was never meant to serve as a self defence carry pistol. If fact, US is one of the few parts of the world where that is even allowed :)
I really don't understand the UGLY trigger guard on the production model. They really messed it up there. It's not a deal breaker but a barrier to purchase as many would be hesitant to drop 2k on an ugly gun. Fix the trigger guard and it would look much nicer and tip over many people to purchase
Yeh, I had an issue with it at first as well, but now I am OK with it. Funny, I made a trigger guard like that 10 years ago on my semi auto airgun and I did not like it there either :)
@@gregorkamensek3923 that's because you have an eye for design as well as talent in engineering Gregor! I will buy one when they fix the trigger. I've talked to multiple enthusiasts about it and they all agreed no joke. It'd be nice if you could pass this onto Huben as they don't really listen to random customers like me. Appreciated as always man.
@@fizzleshizzle8314 I already passed it forward even before the pistol was released. They showed me a prototype picture and I made some suggestions. This was one of them. Actually, I in general suggested that all the design features that are angled from back side down towards front side up to be changed in different direction (also on the shroud). That would look more aggressive and I specially commented the trigger guard that also have this slope and I suggested a change...
@@gregorkamensek3923 I see you tried your best to make the production look as good as possible. I guess Huben has choices of their own but I myself am not going to purchase strictly due the bad design.. maybe I should gather a crowd on the forumns and pass on the opinions..
@@fizzleshizzle8314 I am sure that any manufacturer will listen to customers if there is a large enough base of potential users / customers that would like a specific change. Since there is no technical reason for the changes you suggest, all you need to do is to gather enough people and submit this to Huben and you will probably convince them to make V4 + with those changes. I wish you good luck. I can help you in the final stage when it needs to be presented to Huben.
Really nice job! Your pistol brought me back to airguns after 30 years..., even if it costs, in my country, the equivalent of US$ 4,000.00 a piece. Yes, you've 'heard' me right. Anyway, price tag apart, I just love it!