FEATURES:
-Fits all Military Spec Built Lowers, AR-556, Mossberg MMR Hunter, Mossberg MMR Tactical, Mossberg MMR Tactical w/sights, SR-556, SR-556 Carbine, SR-556 VT, SR-556E
-3 lb pull weight
-Large pin
-Easy installation w/ no adjustments necessary
-100% true drop-in trigger
-No pin rotation