Colt LE6921 Upper Reciever Kit

A short factory upper is still a complete firing system. You are not guessing at the barrel or the bolt.

The barrel is short enough to move in tight space, and still chrome-lined for heat.

M4 Contour: The 14.5-inch chrome-lined barrel uses an M4 contour. The rifle stays quick when you bring it up in tight space.

Known Twist: A 1:7 right-hand twist is cut for 5.56 NATO and .223 Rem. The projectile stays on its path.

Complete Internals: The kit includes the bolt carrier assembly and charging handle. You are not hunting leftover parts to make it fire.

AR Fit: It is built for compatible AR rifles. You mate it to a lower and keep your existing fire control.

Working Finish: The black finish is the working coat. It takes handling without announcing itself.

Mate it to a compatible AR lower and run the shorter gun.