SUPER SEMI-AUTOMATIC ENHANCED TRIGGER•Reduced total weight for precision fire control •2-stage design for safety & control •Candy cane-like 2nd stage break •Full power hammer spring •Tool steel construction •Approx. pull wts.: 1st - 2.3 2nd - 1.2 for a total of 3.5 lbs.For: AR-15 AR-10 & FNH SCAR RIFLESPin: Small