This AR-15 Complete 5.56 pistol upper has a 10.5" M4 barrel with a parkerized finish, and features a 1:7 twist, with a carbine length gas system. It includes a 9.5" MLOK rail, a M4 flat-top billet upper receiver, a Bolt Carrier Group, Flash Hider, and a rear charging handle. This 5.56 upper is compatible with any mil-spec AR-15 lower.
BCG Included
