The Apex Polymer Forward Set Trigger Kit reduces pre-travel and over travel. The kit comes with two different trigger return springs, allowing the user to choose between 4lbs for competition use and 5.5 lbs for duty/carry use. FEATURES: Includes forward set sear, trigger, striker block kit, and spring kit Striker block kit includes striker block, spring, and talon tactical tool Spring kit includes 4 and 5.5lb trigger return springs, trigger return spring install tool, sear spring, and ram spring Results in trigger pull weight near 4lbs for competition or 5.5 for duty/carry Smooth uptake and reset Total trigger travel of .120" Improved safety features make the FSS a reliably safe trigger system Works with all Smith & Wesson M&P pistols in all centerfire calibers and configurations except M&P Shield Requires the use of the sear housing block designed for the large size sear plunger and spring (current production as of June, 2011) BENEFITS: Forward set trigger reduces trigger pre-travel and over-travel The center mounted pivoting safety bar prevents unintended operation by creating a trigger block that will not disengage unless the shooter places their finger on the center of the trigger and encourages trigger manipulation directly in line with the bore axis Forward set sear shortens the stroke of the trigger pull by dropping the striker at a point farther forward than the factory sear Forward set striker block has an improved radius on the striker block face that produces a smoother trigger pull and eliminates most false reset issues This kit produces a smooth 4lb. trigger pull for competition or 5.5lbs for duty/carry use Does not fit M&P 2.0 Pistols