The Colt M4 Carbine FBP Federal Patrol rifle is a dependable semi-automatic platform chambered in 5.56 NATO and compatible with .223 Remington ammunition. Its 16.1-inch M4-profile barrel includes a flash hider and a threaded muzzle, while the adjustable polymer stock allows the overall length to adapt from 32.5 to 36 inches. A flat-top receiver with an integrated Picatinny rail supports optics, and the included flip-up sights provide a practical aiming solution. The rifle features a matte black finish, lightweight aluminum construction, and one detachable 30-round magazine.

Key features

• Chambered in 5.56 NATO and compatible with .223 Remington ammunition
• 16.1-inch threaded M4-profile barrel with flash hider
• Semi-automatic action with a manual selector safety
• Adjustable polymer stock with a 32.5- to 36-inch overall length
• Flat-top receiver with Picatinny rail for optic mounting
• Flip-up sights for a low-profile backup aiming setup

The Colt M4 Carbine FBP combines familiar M4 controls with a practical patrol-oriented configuration for range use, training, and defensive applications.