1911 spring kit installation results

[Blade]

I'm thinking about installing a Wilson Combat custom tune spring kit in my 1911 pistol. The kit includes an increased power 18.5 lb recoil spring, reduced power 10lb recoil spring, a reduced power 19lb mainspring and extra power firing pin spring. Can anyone tell me what kind of trigger pull to expect from the lighter mainspring. Thanks in advance..

Love a Bulldog, take him hog hunting!!!!!!!!!!

 

[JoeHatley]

Maybe about a half pound less than it is now...

Joe

 

[1911Tuner]

Springs

Howdy Blade...Sorry for the delay here. 'Tis the season to be too busy to scratch...

Swapping springs around on a 1911 is generally iffy. I don't recommend lighter than 21 pounds for the mainspring unless other components have been lightened...notably the hammer and trigger. Lightened mainsprings also
change the slide's cycle time because there's less resistance to cocking the hammer.

And...Joe is right. It won't change your trigger very much, and could lead to
hammer follow to half-cock, which can damage the sear nose...or even occasional burst-fire.

 

[huntershooter]

Trigger pull weight is a funtion of sear/hammer angle and amount of tension on the three legged leaf or sear spring. Changing recoil/mainsprings will not affect pull weight appreciably.

 

[wally]

I'd be most afraid of a lighter mainspring will cause mis-fires from light primer strikes.

--wally.

 

[HSMITH]

Stick with a 21 pound mainspring, standard firing pin spring, and a 16 pound recoil spring if your gun is a government length. Your gun will function correctly and last a long time if you do.

Wally, 17 pounds is plenty on a mainspring for ignition, but timing is the real key to needing a heavier spring.