Colt LE6944P Upper Reciever Kit

A piston upper is a closed system. You drop it on a lower and keep running.

The operating parts stay in the upper, so heat and carbon stay out of the receiver you already own.

Rigid Mounting: The one-piece monolithic upper carries a continuous Picatinny rail. Your optic stays indexed when the string gets long.

Free-Floated Barrel: The barrel is free-floated. Support-hand pressure on the rail does not walk the group.

Piston Drive: Short-stroke articulating link piston operation cycles the action without dumping gas into the lower.

Chrome-Lined Bore: You fire 5.56 NATO through a 14.5-inch chrome-lined barrel. Heat and fouling do not own the throat.

Ready Sights: Integrated flip-up front and rear sights ride with the upper. You still have an index if the glass fails.

Put it on a compatible 5.56 NATO AR lower and get back on the line.