Category & Caliber or Subcategory:
This Mark 12 Mod 0, ready to shoot 5.56 upper is equipped with a 18" Douglas 416 stainless steel barrel 1-7 or 1-8 twist with a fitted Full Auto bolt carrier, flat-top receiver, PRi flip up front gas block front sight and rear sight, rifle length gas tube, a Gas Buster charging handle with big latch, brake and collar. The system also comes with a Gen III Rifle length carbon fiber free float forearm and a full length top rail with PEQ II removable rail section. Black or Flat Dark Earth Finish