This M4 Barreled Upper Assembly is complete and ready to snap onto your Lower. The highly accurate 14.5″ M4 Profile Barrel is Chrome Lined and machined from 4150 Chrome Moly Vanadium 11595E Steel. Rifling is 1 x 9″ Right Hand twist to stabilize bullets up to 69 grains, and the barrel extension has the M4 style feed ramps. A Phantom Flash Suppressor is pinned and welded on the muzzle to make a legal 16″ length assembly. A standard A2 Front Sight is fitted. The machined aluminum flat top Upper Receiver is complete with Bolt Carrier Assembly, Charging Handle, Forward Assist, Ejection Port Cover, and Removable A4 Carry Handle with 300 – 600 meter Dual Aperture Rear Sight.
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