Colt LE6940CK AR-15 Complete Upper Assembly

Colt LE6940CK is a factory assembled AR-15 complete upper receiver built for 5.56mm NATO performance with .223 Remington compatibility. It features a 16 in carbine-length direct impingement barrel with a 1:7 in twist, a monolithic free-float quad rail for consistent accuracy, and a flip front sight base for dependable close-range use. The included bolt carrier group is MPI-marked and full auto capable when used with a select-fire compatible lower.

Key features

• 16 in 5.56mm NATO barrel with 1:7 in twist for versatile bullet stabilization
• Carbine-length direct impingement gas system for standard AR-15 operation
• Monolithic free-float quad rail for a rigid mounting platform
• Flip front sight base included for quick target acquisition
• Threaded muzzle with A2 style flash hider
• MPI marked bolt and full auto capable bolt carrier group for compatible lowers

Built from the factory as a complete upper assembly and packaged after test firing, this Colt LE6940CK is ready to pair with the appropriate lower for a purpose-built AR-15 build.