Non Rotate Trigger and Hammer Pins for the Smith and Wesson M&P15-22. Generation 2 Mod 2 Side Plates. Unlike the AR15 rifles, the Smith & Wesson M&P15-22 trigger and hammer pins only have one diameter. Black THE TORQUE SPEC ON THE SCREW IS 11 inch/lbs. MAXIMUM. We recommend 8INCH/LBS of torque. ***THIS IS FOR THE POLYMER .22LR S&W M&P15-22 ONLY. FOR ALUMINUM M&P-15 LOWERS, PLEASE USE OUR STANDARD NON-ROTATE PIN SETS. ***