Colt Le6944 Upper 556Nato 14.5"

LE6944 Carbine Upper Assembly chambered in 5.56x45 NATO complete with bolt carrier assembly and charging handle - Full Floated 14.5 Chrome Lined Barrel with 1-7 RH Twist 1 Piece Monolithic Receiver Flip-up Front and Rear Sights Bayonet Lug and Screw on Flash Hider includes Pivot Pin Adapter to mount upper on Colt lower receivers with large pivot pins. - The bolt carrier assembly that is included with this upper assembly is current production and may not work with some Colt rifles equipped with a steel sear block.