I just installed a EGW 1911 oversized firing pin stop. I did my research and file fit it to my slide and gave it a slight radius and polish. By racking the slide by hand I can really tell how it reduces the mechanical advantage and would absorb/ delay recoil. It is for a Ruger SR1911 which comes with a factory 18.5# recoil spring and a 23# hammer spring and i use factory 230 ball ammo. Do you guys recommend reducing the recoil and/or hammer spring with this setup? Thanks
Reduced 1911 recoil and/or hammer spring with flat FPS?
- Thread starter SKS-Stu
- Start date
I have a EGW flat FPS in my Les Baer.The idea of this stop is that the hammer is at a mechanical disadvantage for cocking during the firing cycle and delays the opening of the slide.This slows the slide down in its rearward travel and changes the recoil impulse,supposedly helping with sight tracking.As more energy is needed to #### the hammer with a flat stop,you really dont need a 18.5 pound spring,even with ball ammo.Rugers come oversprung as it is and you should find that a 16lb spring(which is what the 1911 was designed to work with in the first place)should be fine.Some guys even go down to a 14lb spring with the EGW stop and dont seem to have any issues.
I have the EGW stops in 2 Colt 1911's one is set up with a standard 16lb recoil spring for full power ammo and the other with a Wolff 15lb variable for light bullseye target loads. Both have 23 lb mainsprings. I'd suggest sticking with a 16 lb as you'll get less muzzle flip then with the 18lb.
You may find some benefit from dressing the ends of the mainspring. That won't reduce the rate, but the gun will function more smoothly. I dress the ends of all mainsprings to be as flat as possible, and on keeper 1911s of mine I will also clean up the inside of the MSH. I like everything that moves against everything else to be as clean and slippery as possible.
Yeah, you start doing that stuff and you're getting pretty 1911 hipster..."you've probably never heard of this, but I always do it to my guns".
