Sons Of Liberty Gun Works 13.7COMBATV2556 Combat V2 Profile 5.56X45mm Nato 13.70" Threaded, Mid-Length Gas System, Black
Sons Of Liberty Gun Works 13.7COMBATV2556 Combat V2 Profile 5.56X45mm Nato 13.70" Threaded, Mid-Length Gas System, Black QPQ Chrome Moly Vanadium Steel, Fits AR-15With The Significantly increased Cham...