The Colt CR6940 Monolithic Carbine is a 5.56 NATO semi-automatic rifle built around a one-piece monolithic upper receiver. Its continuous Mil-Spec Picatinny rail extends from the rear of the receiver to the front sight, providing a stable mounting surface for optics and accessories. The true free-floating 16.1-inch government-profile barrel supports consistent accuracy, while the direct-impingement operating system preserves the familiar handling and controls of the AR-15 platform. Folding front and Magpul MBUS rear sights provide a practical backup sighting system, and the M4-style synthetic stock offers an adjustable fit for a wide range of users.

Key features

• One-piece monolithic upper receiver with continuous Mil-Spec Picatinny rail
• Free-floating 16.1-inch government-profile barrel for consistent accuracy
• 5.56 NATO chambering also compatible with .223 Remington ammunition
• Direct-impingement semi-automatic operation with 30+1 capacity
• Magpul MBUS rear sight and folding front sight for backup aiming capability
• M4-style synthetic stock provides adjustable length of pull and familiar handling

The Colt CR6940 combines a rigid monolithic receiver, free-floating barrel, and adaptable AR-15 controls in a versatile modern sporting rifle.