HIPERFIRE(R) is simply unmatched in performance and reliability. They have broken all of the standards in single-stage AR triggers with the HIPERTOUCH(R) family, and now they have done the same in the new X2S(TM) family of two-stage triggers. Whether you shoot competitively, train to defend yourself and your family, or you simply want to enjoy shooting out on the range, ensuring your rifle functions properly every time, without fail, is important. These new two-stage triggers feature the same technology that HIPERFIRE has become known for. Radical Sear Mechanics(TM), Cam-Over Toggle Engine(TM), Soft Start Lock-Up(TM), Tactile Weightless Break(TM), user adjustable pull weights, mil-grade components, and precision manufacturing processes come together to make one of the most robust two-stage triggers available today. The MOD-1 design has a longer first stage than MOD-2 or MOD-3 for a more defined first stage prep, but shares the same curved bow and Maganese Phosphate coating as the MOD-2 design.