This is a Hiperfire known as the X2S, model X2SM3.
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-3 design has a shorter first stage than MOD-1 for a faster first stage prep. It shares the same sear geometry and performance as its MOD-2 counterpart" but has a flat trigger bow with their patented HIPERSHOE(R) and an upgraded Black Nitride coating. This trigger can be used with or without the included HIPERSHOE.
Features:
Two-stage AR trigger
Minimal, user adjustable, 2 – 3 pound first stage
Minimal second stage wall with a 1 1/2 pound weight
Total 3 1/2 – 4 1/2 pound pull with green or red springs respectively
Distinct wall between first and second stages allows for effective prepping of the trigger for added control
Clean, effortless break
Weightless, imperceptible over-travel
Cam-Over Toggle Engine allows for lighter pull weights without losing hammer strike energy
Soft Start Lock-Up aids in eliminating rifle flinch after the break for more accurate shots at distance
Radical Sear Mechanics allow for the use of heavier hammer springs to aid in longevity and eliminating light primer strikes
