HIPERFIRE Xtreme 2 Stage X2S Mod-1 AR15/10 Trigger Assembly is simply unmatched in performance and reliability. We have broken all of the standards in single-stage AR triggers with our HIPERTOUCHA(R) family, and now we have done the same in our 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