Part# 34201 Wolff GunSprings for S&W M&P RP STRIKER SPRING 4LB Pak of 1
For Use in: Smith & Wesson M&P Series 9mm, .40 S&W, 357 Sig
Striker Spring
W. C. Wolff Company offers reduced power striker springs (firing pin springs) for M&P pistols rated at 4 pounds. The factory spring is 5 pounds. This spring will help reduce trigger pull.
Warning: For competition use only - not for duty use.