BCA AR15 16" Complete Upper Receiver 5.56 AR15 Upper

This BCA AR-15 complete 5.56 Nato rifle length upper has a 16" M4 contour barrel with a parkerized finish, and features a 1:7 twist rate, with a carbine length gas system. It includes the new 15" MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a right-side charging (Gen2) handle (patent protected). This 5.56 Nato upper is compatible with any mil-spec AR-15 lower. Weight (lbs) 5.300000 Length 16 Profile M4 Contour Twist 1:7 Finish Parkerized Material 4150 Chrome Moly Vanadium Thread Pitch 1/2 x 28 Caliber 5.56 NATO Feed Ramp M4 Feedramp Flutes Non-fluted Gas System Carbine Gas Block System 0.750 Charging Style Right Side Charging Classification Complete Upper Assembly Platform AR-15 Bolt Material E9310 Receiver Material Billet