ENHANCEMENT KIT M&P 9/40/M2.0!
FEATURES:-Reduces over-travel-Smooths trigger pull-Reduces trigger weight by approximately 4lbs-Includes: fully machined sear, competition striker spring, competition spring set, ultimate striker block kit & slave pin-Works w/ S&W M&P 9mm, .357SIG & .40S&W; full-size, compact, long slide & Pro models