Ruger MKIV 22/45 Trigger Job
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- Опубліковано 14 жов 2024
- The trigger on my @RugerFirearms MKIV 22/45 was pretty disappointing, especially compared to the MKII or MKIII. I only cleaned up the stock parts. I didn't want to spend the money on aftermarket replacement parts. Most of the work was in polishing trigger components with either a polishing wheel on the Dremel or using a ruby stone to polish engagement surfaces. Also took a little tension out of the sear spring and cut one coil off of the mainspring. Overall, reduced the trigger from 5+lbs to 3.5lbs.
Great video- Thanks! I did everything you did and the trigger pull is better, but still not good enough. I'm going to go back and do a better job polishing and see how that works.
Polishing the contact points reduced my pull weight from about 5.5 to 4.5 lbs. No changes done to the springs except for repositioning the magazine disconnect spring to disable it.
Most noticeable improvement is that formerly gritty trigger is now smooth, and I got to learn more about my gun. Nice video
Glad it helped.
I enjoyed your video. Very informative. Like you, I hated my trigger when first shooting my 22/45. The only thing, I didn’t get to watch your video before I went to Tandemkross. I purchased their “ULTIMATE TRIGGER KIT”. It included a flat faced textured trigger (with pre-travel and over-travel adjustments), a new hammer and sear, and it also included a BLAST SHIELD, that eliminates the magazine disconnect feature and supposedly keeps the internals clean. Now, my trigger pull is 2.5 pounds, down from 4.5. I just hate that I didn’t watch your video first. I could have saved some cash. However, I would gotten the trigger anyway. I love their Victory Triggers. Thanks for sharing, I’ll be checking for more of your stuff…
I did this to my 2245 . I only did the contact points at first.
It made no trigger pull weight reduction in mine.. I took mine apart a second time to completely polish all the parts AND there was again, no reduction in trigger pull weight. The trigger does break better tjough. It did something. The most gain was the knowledge and fun of taking it apart. My pull weight stands at 4.5 l.
Sorry it didn’t lighten things up. I’d go for a lighter mainspring next.
Excellent video, and very helpful. I had an old S&W 22A that is pretty accurate, but I came across a "used" Mk IV that didn't look like it had ever been fired, at a price I couldn't pass up. How disappointed I was with the trigger on my Ruger Mk IV 22/45! It was heavy, didn't break cleanly, and made that old 22A seem like a far better pistol than it is. Now I'm going to take it down & do what you've laid out so clearly, and I hope I'll have as good a result as you did. A target .22 shouldn't have a trigger pull that's over 4 pounds, IMHO, and mine is around 8!
Glad the video is helpful. I’ve got a MK II & III and the triggers were so much better out of the box. Couldn’t believe how bad a brand new (2022) 22/45 trigger was. Much better now and it only cost my time.
Nice job.. thanks for sharing what you did. I’m not impressed with my Ruger mk4 22/45 trigger or for that matter all of the internals.. just not the quality of the older mark series .. gritty heavy trigger.. cheap parts.. like they know that everyone is going to gut it out and use aftermarket parts… you pay enough for the stock gun! It should be a lot better then what it is.. that being said I spent an additional 300 bucks to get mine to shoot better and reliable.. as the mags had to be tuned .. for they were rough and gritty on the feed lips and raceway .. just disappointed in Ruger quality right now ..
I need to cleanup the feed lips on some of my mags too. Same gritty problem with a few of them. Agree 100% on the internals of the 22/45.
How has the pistol run since you did the work, any problems? I am not sure about messing with the mainspring as some videos had trouble removing it to the point of wondering if the sleeve was press fitted,which obviously it is not. Still, I am not confident I would not bork it up if I went to cutting.
I’ve had zero problems. Trigger has functioned flawlessly. I bet 90% of the improvements are from polishing the internals. The little bit that I cut on the mainspring likely had minimal impact.
@sheepdogmarksmanship Thank you much! I just got mine (actually not the 22/45 model), and I am hoping to avoid the third part trigger expense.
You have not done one thing that will take a pound and a half off the trigger pull weight. Lighten the plunger spring - volquartsen does this in their kits. I would also dump the magazine disconnect - it is definitely messing with the hammer geometry. Volqartsen gets rid of this as well. My ruger's mesure out at abut 1 llb 6 oz each. This is an optimum weight for .22 target pistols..
Like I say in the video, I wanted to stay with the stock parts. Cutting a coil off the ridiculously heavy mainspring makes a big difference. Cleaning all the engagement surfaces will affect both perceived trigger weight and actual weight. No doubt Volquartsen makes great stuff, but in this particular case, I wanted to see how much I could improve the stock setup. 1.5 lbs was the result.
@@sheepdogmarksmanshipI think that’s a sales rep from Volq. trying to sell you the kit. 😂
Is there a differnt between the triggers of the mk4 and the 2245?
I’m not 100% sure that everything is the same, but I believe most parts are interchangeable. Ruger doesn’t reference an actual part number in their manual (just a diagram number) for both. I checked Numrich and the parts I compared (hammer, sear, sear spring) all had the same part numbers.
By cutting the spring you didn’t make it lighter. You made it heavier. Think about it. The only thing you should have done is polish the hammer and sear. If the contact point is smoother the hammer will just slide like butter on the sear. That will in turn lighten the trigger pull.
I’d need to see the math on that. I’d certainly agree that cutting springs down is not the preferred option by any means, but considering I didn’t have a lighter replacement main spring on hand, that was the route I chose to go. Cutting springs has long been a way to reduce trigger pull weights. In this case, the effect was probably negligible with as little as I removed, but it should reduce upward pressure on the hammer strut/hammer and therefore less engagement pressure between the hammer and sear. What am I missing?