Mount a Holosun 507K on your Glock 43X MOS
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- Опубліковано 15 вер 2024
- The Glock 43X MOS was created with good intentions, to make it easier for you to mount your red dot to the slide, but it had a major limitation. this video explains how we can help open up the options!
Let's start a conversation in the comments! I read every single comment!
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We love servicing you, our customers! thank you for giving us that opportunity! I don't take it lightly.
Hi Lenny, for Holosun eps carry do I need to have this done for my 43x mos?
Is the same true for the 48?
@@allanpusag4075 it is but the EPS comes with an adapter place.
Top notch. I’m buying a G43X MOS and sending it to you for this work.
You can do this at your house for free. Take the slide off, take out the extractor, take a file and file down the rear nubs almost all the way off, test fit the optic, you’ll have to file down the front nubs a little bit for the optic to sit flush. Use the screws that holosun provides with optic, screw them in with the optic on the slide and you’ll see them bottom out where the extractor goes, file down the screw and keep checking to make sure it will clear on the right side. Tighten down bolts and mark them with a sharpie to make sure they aren’t backing out. Done
What about protecting the exposed metal from rust?
@@shuumai the holosun comes with a moisture seal on the bottom of it to protect against moisture getting underneath the sight. I haven’t taken my optic off to see if it has any rust or not but will in a couple months
I work in a machine shop. I’m just going to load my slide into a mill. We used to make parts for a local company here before they got their own machines.
@@shuumaigun bluing solution worked well for me 👍
How much did you shave the right screw down?
Great guy. Humble and personable. I was in the store 1 Saturday morning and Lenny rolled in with his gym bag and yelled "Hey fellas! How ya'll doing? across the showroom floor. I yelled OK Lenny! How you doing?"...the rest of the showroom was silent. I guess they couldnt believe Lenny was a regular dude and not a stuck up celebrity. STRUTH !
Capparoni
@@WINDSORTOWNSAVGo away, kid.
I just bought a adapter plate for about $30 and mounted my Holosun 507k2 sight
I filed down the rear Lugs completely, I also had to file down the front lugs to some degree because they were too tall to fit into the recessed pockets of the 407k and 507k. Cut the screws myself, and the beauty of not using an adapter plate is, my iron sites will legitimately have a lower 1/3 Co witness so you can use both the factory iron sights as well as the Holosun.
It's a really solid mounting and is still holding zero perfectly after nearly 800 rounds
I found an adapter plate for the 407k that was thin enough to allow me to co witness with the standard sights. Wasn’t too expensive either
I say ya you crazy have it done professionally
@@Mustyplatypus06 which plate did you get. I would rather use a plate than file mine down
@@mikesimpson9997 c&h precision they send screws with it as well you’ll know if you screw it down too tight because the ejector will be loose
@@Mustyplatypus06 thank you I have c h plate on my smith and Wesson 2.0 10 mm . I will order one for my 43x
I ran a swam-fox sentinel. its plug and play, no plate needed. great optic for under $200. I prefer to keep my weapon how it came from the factory. You can never put those nubs back on and there will be many new direct fit optics coming out in the future.
Does your optic sit low enough to cowitness?
The sentinel II has iron sights in front of the glass to co witness.
I'm happy to read the sentinel drops in with out a plate
So as a machinist with Bridgeport access this is totally something I could do myself. Awesome I’ll use some depth micrometers to see how long the screw should be.
"it is inexpensive" 😂
$100 is a lot for the work done...did mine with a file for free fifty. I appreciate the fact that a CNC machine is not cheap and you have a lot of expenses but $100 is just too much.
Love the GlockStore, want to stop in next time I am in Nashville.
I have to agree with you 100%. I realize labor isn't cheap but this takes at most 15 minutes and probably less since they do so many they probably have a jig set up and can do it in less than 5. I'm not a cheapskate and don't mind paying for a service but $100 seems a little excessive. A file and my time are worth the savings.
What did you do about the screw though
@@micahhammm7851 I shortened it with a Dremel.
For the left one, I just shortened it until it would tighten down all the way with the sight installed.
The right one will interfere with the extractor plunger. For it, I removed all the internals. From there I install the sight with the left screw, shorten the right screw a little at a time and install it, and see if the extractor plunger hits it or not. If it hits it, I take a little more down until it clears.
$100? That is crazy. There are places charging that to mill slides for regular 43x.
Its $200 now
I just mailed my 43x to the G.S. for an optic cut and holosun 507k green, pacmail said it would be there Tues,can't wait....Lov the Glock Store......
How good does it fit? I know from looking at the dimensions it's a little bit wider than the slide and was wondering if it's not sticking too much to the sides.
@@martinbank_ It's close to perfect
I wish you would include the price in your videos. I know prices go up as the years go by but if you included the price with the phrase “it’s $150 as of 2023” it would answer the only question I had. Other than that your videos are great. Thanks
Very nice. Wish this service was available back when I got my G48.
Im buying holosun for every gun i got. Even got a hs510c for my ar15. Hope to put it on and sight it in over the next few weeks
I grinded the screws on my G41 MOS fits like a glove
I bought a holosun 407k x2 for my glock43x mos, I had this issue. Ended up puting it on my sig 365. Until I shave down the right screw. I'll probably get an eps carry for my glock.
Definitely on my list to do. Hopefully this year or early next year.
I did not know the screws need to be shortened. It's a good thing I had the GlockStore mount my 507k onto my 43X MOS. And to think I was initially just going to dremel down the posts.
I found out the hard way
After it was milled, did the stock sights have a lower portion cowitness? I’m trying to find out if I should buy taller sights for after my slide gets the mos milling done for the eps carry
@@camerontiedeman4699 I recall someone saying that there’s a lower 1/3 cowitness of the factory 43x mos sights when you install a 507k in this fashion. Not sure how that translates to the eps carry, but hopefully it helps.
In the video Lenny says it’s very inexpensive to have the posts removed. I called…it’s not so ‘inexpensive’ for that quick job….$100 and no additional price break on this service even if you buy the optic from them. Little disappointing.
i really hope that holosun will soon come up with the micro scs version for g43x mos which will mount directly to it sans any plates and will co-witness with stock 43x mos sights. like it now does on the g19 mos... or alternatively, to make the eps carry version for g43x mos that will also mount sans any plates like the current eps carry does to sig p365,...
i have the scs on my new g19 mos and love it but out of any models currently offered, my favorite glock is the the 43x mos model and although the 507k i have on it already is a very good rds in its own right, it's not a great one and falls short when compared to the scs as designed for g19 mos and the eps carry as designed for p365... it sits a bit high, the required use of a mounting plate also compromises it somewhat with regard to overall stoutness of the mount and i can't use factory 43x mos sights while the 507k is mounted...
i'm thinking of swapping the sights for suppressor height ones but this will still not solve the 507k sitting rather high on a subcompact gun like the 43x and i'd like to have the peace of mind to know that my g43x mos' rds is mounted as solidly and stoutly as possible... also, holosun imo should make an eps or eps carry version for a direct mount to the g19 mos... i'd love to have a compact enclosed rds on my other g19 that doesn't require a mounting plate nor suppressor height sights...
holosun is currently my only choice in rds for handguns because of their circle dot reticle option and the fact that batteries are replaceable without the need for the removal of the rds from the slide/gun...holosun's rds optics might not be the sturdiest, duty rated, red dots on the market but they're certainly clear/sharp and tough enough for my purpose and those 2 options offered simultaneously on all of their optics trump any other brand option for me...
naturally, a huge part of the problem with choosing a red dot brand/model [or a handgun] would be solved by all rds and gun manufacturers via simply agreeing among themselves on using a single [or only 2, 1 each for large and small handguns], uniform optics type mount base and all the red dot manufacturers could then finally offer all of their optics from now on in 1 or 2, universal [direct] mount types...
this might be a 'captain obvious' type of a statement but rds makers need to get together and choose one, or two at most for large/small guns, universal footprint and the trademark/patent holder/rds manufacturer of the one they'd agree upon should then also relinquish any desire for charging others any patent/trademark fee for anyone else to use such... better yet, they should collectively design a new, super sturdy universal footprint so there would no longer exist that ego factor of one maker having a superior footprint design status over others... this would benefit everyone and significantly save everyone concerned [customers, rds manufacturers as well as gun manufacturers] a lot of money as well, not only in a short run but even more so in the long run... it's simply the only viable 'good for business' type of move yet for some reason we're still dealing with numerous [at least 4 main types], incompatible footprints about 27 years after a first type was standardized around 1996... the rds industry needs to take a large step and agree upon a universal standard footprint...
I like where your mind's at...
They just did
@@VincitOmniaVeritas7 which make/model?... as far as i'm aware there's still nothing that mounts directly to the g43x mos without some modification to the mos slide mount or requiring a plate... as of the past week i'm actually considering getting the newly advertised magnetic/rear sight rds mount which is featured in recent highlight gun show clips by tfbtv, et al... but i'd still choose a plateless direct mount, scaled down rds for my g43x mos which co-witnesses with factory sights if one existed...
@@36Studebaker well, they sorta did with the SCS carry, that will allow you to cowitness with factory sights unlike the EPS carry and 407/507K. Yes, you’ll have to make a small modification on your gun, but it’s well worth it if you ask me. Allow me to just paste a reply that I gave to another guy here:
“I wouldn’t use an adapter plate: the short screws are a major failure point and you won’t be able to co-witness with your factory sights.
Modifying the Shield RMSc footprint is pretty easy for any gunsmith or anyone who knows how to use a mill drill machine (some uncle Cletus will use a file): remove the rear recoil lugs and just shave a bit the front lugs. Don’t forget to blue the bare metal surfaces later.
It might sound a lot of work but it’s not, should be a $50 job on your local gunsmith (or $100 at Glock Store plus shipping). I milled my stock p365 for the modified RMSc footprint (or “K footprint” like Holosun calls it) and it was well worth it: you’ll have a plethora of options for micro red dots since most manufacturers are using the modified footprint now, not the original.
you’ll still have backwards compatibility with the Shield Red Dot (which are made of polymer and don’t have any of the modern features the Holosun and others have).
BTW, the reason Holosun modified the footprint to remove partially the recoil lugs it was so they could make the battery compartment top loaded and water resistant (both things the Shield is not). Those two reasons alone are well worth the minor modification on the gun, in my opinion.
Cheers.”
@@VincitOmniaVeritas7 appreciate your time to type this but i really want an rds that mounts directly with no mods to the g43x mos whatsoever, just like the scs mounts directly to the g19... the only way i'd go with the scs carry rds would be to order a new spare slide (like the glock store offers) but that would cost more than my entire g43x if one adds the cost of rds into it... for the time being i'll just keep that holosun 507k with the plate mount on my g43x mos since that option is already paid for in my case...
i.m still intrigued by that new magnetic mount rds system especially since it's a breeze to instantly mount/remove it, my main concern with that one is that it could potentially interfere with glock's reliable cycling/operation because that magnet must be very strong and that might in turn really screw up the proper cycling/function of the slide, firing pin or even trigger function just enough to make it unreliable...
will have to just wait for a review, or a few, by one - or more - of my top firearms channels on that magnetic rds mount concept to see if the reliability factor isn't compromised by the magnet (s)...
also seriously considering goin to sig p365 for my micro compact option as the eps carry mounts directly to its optics ready shoe except for having to use slightly longer screws...
Don’t put too much loctite in that screw or u will clog up that plunger and your gonna have extraction issues lol trust me it was a pain to remove
Thinking about selling my G19 5th gen with the cut out on the mag well cause it hurts my pinkie. I want to get a MOS Gen 5 G19 and have ya’ll do this service in the video as i have found it is hard to beat the 507K from a price to performance ratio. Technically speaking it could be a debate of price aside the 507K is the better dot on the market. But that’s subjective and i am a price to performance shopper. I love the video’s , love my glocks and if Texas wasn’t so far from Nashville i would be there. It would be a honor to see the store and employees that make it run for us gun owners. Thanks for all that you do and i will be looking into this service soon, my G19 is barely used, maybe 400-500 rounds. So i would like to make decent return on it to get the MOS. I’ll be in touch.
Ok. How bout taking a cue from Springfield Echelon ( I know, I know) and have the cuts/holes for 30 different mini red dots too?!?!
Lenny open a store in Orlando Florida please 🙏🏼 😅
When I’m just shooting around for fun at the range, I like just the dot because I think the circle that is a little too busy. But for self-defense and quick target acquisition circle. That is definitely the way to go.
Didnt realize Will Arnett’s dad was into firearms
If you mount the 507k directly to the cut, does it now co-witness with factory sights ?
Mine does. You gotta make sure that those two mounting bumps are completely removed from the optics cut. If you do it yourself, ya gotta be very careful.
Why won't hs just add the damn dimples. It doesn't take any options away, only adds.
I don't think milling the posts off is the best thing. No mention of an adapter plate...
But you can turn off the circle dot. Frankly I prefer the circle dot!
You can cycle between dot, circle, and circle dot.
Should have gotten a SHADOW SYSTEMS CR920. The optics WILL NOT WALK OVER TIME.
My Glock 43X and 48 aren’t and MOS where can I get a slide only that’s MOS ? Rather purchase just the slide then an ew gun ?
If I purchased the optic from your shop is there any discount in you fitting it to the slide? ✌️🇺🇸
I'd be tempted to send my slide to you guys but I can't go 10 days plus all the shipping with out my EDC and everything local has weeks long waiting periods
Great video, purchasing a 43x mos for EDC.
With an optic plate, will the screw still need to be shortened? Is there a disadvantage to an optic plate? Is there an optic plate you recommend for the 43x mos?
The front posts also need to be machined down a hair
You da man Lenny!!
Do you sell the shorter screws? I think ima shave the post off myself
good job Lenny
What ammo are you using. Since I’ve switched my magazine to the Shield Arm and changed the magazine release. Seems the only ammo I can shoot out of it is practice ammo. Anything else and I have problems with the gun
I have a Holosun EPS Carry being shipped to me from another vendor. Can I send in my G43X MOS slide for the retrofit service without the Holosun EPS Carry optic? Or do I have to wait in order to have the screws that come with the Holosun optic shortened?
You can send it in with or without the optic. If you choose to not send the optic in, you will need to shorten the screws yourself.
@@glockstore Thanks. When I send you my optic, will you be able to return to me the optic box and unused parts, manual, etc.? Also, do I need to include the barrel and spring in order for you to check and make sure it is all installed correctly?
Thanks again.
Everything you send us will make it back to you. If you send the Optic inside the packaging, You will receive back the installed optic along with the original packaging and components.
Can customers internationally buy directly from yourselves, or must we go through local distributors? I'm in South Africa
Is there a adaptor plate for holosun 507k
So I really don't see the downside to getting this mod...
Ok so the factory oem cover plate will still fit it securely w/o an optic if I end up preferring iron sights eventually, and every other holosun k (and other future optics probably) fit this footprint. Screws expertly shaved to fit reliably... Um yeah, gonna do this prob...
Wish Holosun would make an SCS slim for the 43x and 48🤔
Holosun SCS CARRY
@@VincitOmniaVeritas7 scs carry still needs an adapter plate, they don't make a scs that will fit drectly to a 43x slide.
@@jmanownz985 I wouldn’t use an adapter plate: the short screws are a major failure point and you won’t be able to co-witness with your factory sights.
Modifying the Shield RMSc footprint is pretty easy for any gunsmith or anyone who knows how to use a mill drill machine (some uncle Cletus will use a file): remove the rear recoil lugs and just shave a bit the front lugs. Don’t forget to blue the bare metal surfaces later.
It might sound a lot of work but it’s not, should be a $50 job on your local gunsmith (or $100 at Glock Store plus shipping). I milled my stock p365 for the modified RMSc footprint (or “K footprint” like Holosun calls it) and it was well worth it: you’ll have a plethora of options for micro red dots since most manufacturers are using the modified footprint now, not the original.
you’ll still have backwards compatibility with the Shield Red Dot (which are made of polymer and don’t have any of the modern features the Holosun and others have).
BTW, the reason Holosun modified the footprint to remove partially the recoil lugs it was so they could make the battery compartment top loaded and water resistant (both things the Shield is not). Those two reasons alone are well worth the minor modification on the gun, in my opinion.
Cheers.
What do they charge to fix the slide to fit the Holosun
How the heck does Holosun not have one that fits the gun without having to mill it
Probably a patent issue. A lot goes on behind the curtain in the courts that we never hear about. Holosun and others probably don't want to pay Glock or Shield to use their design.
@@nate.leal. you're probably right, I didn't think of that. Hopefully they will eventually. Like the scs for full size Glock mos. They even put grooves in it to match the slide.
Great video, thanks. Question...would all of this apply to the 407k holosun as well??? Also, how far away do you take weapons from?? I'm in Texas.
You will only have to ship the slide if someone does this.
Can you install co-winesdnisine iron or tritium sights to add to the MOS?
Will you be offering this service for the optics ready s&w shield plus?
Do you send it back zero in?
glock 19 is used barrel for 32 acp can it? if possible, please make a video, so that I can be satisfied watching on your channel, sir!❤
Anything that resembles Glock is expensive that is what hurts however I had a Glock gen 5 19 and it never never never failure to feed or failure to eject why am I so stupid
Does the Glock 19 MOS slide need to be retrofitted for 507C X2 or 507K?
Where do I go to find out where to send my Glock so I can y’all can add and mount the holosUn for me?
Will the Vortex Defender fit the same?
Holosun for GLOCK 43x Mos, How much? How to buy?
Why not just use the Holosun EPS Carry with the C&H adapter plate?
The 507k has the same exact footprint as the EPS carry. The goal is to not use an adapter plate at all so there's less weight, less parts, and you wouldn't need to change the iron sights to co-witness with the Holosun.
I'm not paying extra for the MOS just to send it in somewhere to mill more off of it. Glock needs to fix this. Saying the shield optic is "not very good" is an understatement. It's completely unusable and shield should be embarrassed to sell such a piece of junk.
I have a 43x but it’s not mos can y’all machine the threads and make it mos - th led rail
Does this void warranty?
I wonder if this works on the G17 gen 5 MOS?
To tell the truth, Holosun caused the problem because they didn't make the "K" model to industry standard RMS/RMSc footprint.
As much as I like the circle-dot reticle, I won't buy a Holosun K if I have to modify my mounts. Holosun won't change until they feel the pain from consumers.
I’m not a fan of the circle dot. I prefer red dots for the reason that it is as little of marking as possible and not cluttered. The circle makes it too much. I prefer to just put a dot on something, pull the trigger, and that’s where it goes lol
So you sell the screws as a set?
How much is this whole process?
03:58 Lenny is doing gender reassignment surgery for glocks.
I would buy a plate. I ground mine off and been through 2 Holosuns with canted reticles. Holosun is trash.
What was breaking on the holosuns?
my 507c circle dot is canted on my glock 20 gen 5... pisses me off. its not the gun or the C&H plate... its def the red dot because i had it on a psa dagger and it was canted on it too.
@@jmanownz985 Yep. It’s an engineering flaw. You buy an EOTech and it’s perfect. Holosun is junk.
I just got a G48 MOS. I'm assuming you do this slide as well for 407k/507k?? tks!
That is a correct assumption!
@@glockstore lol, just saw it on the website. tks
What number plate??
Can I get the slide black nitrided when it’s done?
Yep!
Glock plates suck, always use aftermarket or do a direct milling to the slide.
very simple op lol i dont have the machinery to do that
If you cut a slide for a red dot, can I cover up the cut again?
[crickets] Good luck ever getting a clear answer to this question. It's like you gotta pay to find out.
$150 plus downtime, vs a $25 dollar adapter plate and not ruining your slide.
Ok Lenny, think your shirts are getting too tight and cutting off the oxygen to the ol brain there.
does this work for the eps carry?
I was messing around and my regular EPS fit without filing
Too bad it voids your Glock factory warranty
If I send you my G45X can you make it an MOS and send it back with the optic on it?
Why would you even make the slides with those posts?!?! Or not provide a mounting plate?!!?? The whole point of getting the MOS slide is so you can mount your optics without all of this unnecessary fuss. What a headache!!!
It's actually holosun's problem, the Vortex Defender fits perfectly on an mos factory slide. Those posts add a connection point for the optic to make it more secure. I'm not bashing holosun, they need to update their optics is all. I actually mounted my holosun scs to my gen5 G20 mos last night! It fits perfectly without any milling!
@@OneNationUnderGod. what you say is proving my point. The full size Glock MOS slides work fine with the Holosun/RMR footprints. The optics have a standardized footprints, as do the full sized Glock MOS slides, that fit the standardized optics footprints. The Glock 43x slide is *not* the same as the Glock gen5 G20/G19/etc. slides, and it doesn’t fit the Holosun standardized footprint. I have a Glock G19 that works fine with the Holosun 507c without any milling as well. This is only a problem on the 43X slide. Holosun, nor any other optic, will change their footprint for one subcompact pistol size that wants to deviate from the standard, that’s unreasonable. Therefore, this is a Glock problem, specifically with the 43x slide.
@@glassmw9823 and that's why I'm going with a vortex defender on my 43x, I'm not partial to any one optic manufacturer. So if holosun wants my business they better get an optic out before I'm ready to complete my 43x.
@@OneNationUnderGod. that’s fine, have at it. It’s just not a Holosun problem, since Holosun is using a standard footprint. It’s a Glock problem since they’re using a non-standard, proprietary Vortex footprint.
@@glassmw9823 if holosun is missing out on sales to other optics that work on one of the highest volume compact guns on the market it's still a holosun problem. Obviously neither one of us is going to change our opinion, have a nice day.
Dremel tool baby...
Can anyone who has had the slide milled let me know if stock sights co-witness with an EPS Carry? (or 507k, probably close enough). In the SCS video he says the 32MOA circle sits right in the rear sight slot when lined up which seems pretty cool! Curious if that trick works on the 43X as well or if it's specific to the SCS (which is only for full width Glocks)...
They’re not tall enough. You may need to install suppressor-ready sights for that application. I had my 30S milled for a Holosun.
43X MOS with rear posts removed and a Holosun 507 K mounted directly to the slide with Ameriglo Pro
i Dot standard height sights allows for a easily seen lower 1/3 co-witness on my Glock.
soooo you can literarily just do this at home using a file and some elbow grease.... why would I pay you $100 for that? I mean sure you'd do a more precise job and I'd likely scratch up my slide a bit, but no one sees that when its covered by the optic. and you have a machine that can do it in 7 seconds, why not cut fellow gun guys a break and just charge $25 at most. it's not like it's a job that has your machine running for hours on end.
Capitalism - supply and demand.
Why even give this pistol a cut with very few direct fit options? Glock is losing me. I don't want to spend more money to do something glock should have been smart enough to do in the first place.
Con Artists!!!! Read the reviews before buying from GS!!! They are POSs!!! I ordered a size F holster, they changed it to Size E. I went with it thinking I made a mistake, went through the exchange process, now they are sending size R !!! There are plenty of other good places to buy from!!!
😂
Troll
Too many other good options available. I'm not modifying my slide. I'm a long time follower of Massad Ayoob, all the way back to the early to mid 90's where he's been a contributor and expert witness his entire adult life. Massad says. NEVER modify your carry weapon. Never use handloaded ammo. Bone stock everything is crucial unless you want to get completely destroyed in court in the unfortunate event that you need to use your weapon to defend yourself. Literally ANY physical modification will be used against you to make you look like a nutjob that modified your weapon just HOPING to use it to kill someone. That's the way the anti gun lobby rolls 100%.
Mods are great for fun and training. NEVER carry a modified weapon for defense. Do with that what you will, but that has stuck with me my entire life.
Can you guys file the two front notches down a tad bit and shorten both the screws
From what I've seen watching a few of these videos on different channels, only the right screw needs to be filed down to avoid the extractor underneath.
Get a sight, And put some hair around it