The Colt Barrel 5.56mm NATO 11.5" 1-7 Black is a genuine factory AR-15 barrel assembly built for shooters who want dependable performance in a compact platform. Forged from ordnance-grade carbon steel with a chrome-lined bore and chamber, it features a heavy profile for consistent accuracy and a traditional matte black Parkerized finish. The assembly includes the barrel extension, M4-style round handguard cap, and fixed front sight tower with integrated gas block, plus a threaded muzzle ready for compatible devices.

This 11.5-inch barrel is configured with a carbine-length gas system to promote reliable cycling in AR-15 pistols and short-barreled rifle builds. Its 1-7 twist rate is optimized for modern 5.56x45 NATO loads, offering stable performance with a wide range of bullet weights for training, range use, and general-purpose shooting. The combination of Colt’s materials, machining, and long-standing AR-15 expertise results in a barrel assembly that reflects the manufacturer’s reputation for proven craftsmanship and durability.

Key Features:

• Manufacturer: Colt
• Model: Barrel 5.56mm NATO 11.5" 1-7 Black
• Caliber: 5.56x45 NATO
• Barrel Length: 11.5"
• Twist Rate: 1-7
• Gas System Length: Carbine
• Muzzle Threads: 1/2"x28
• Barrel Contour: Government Heavy Profile
• Color: Black
• Included Components: Barrel Extension, Front Sight Tower/Gas Block, M4 Handguard Cap
• Threaded Barrel: Yes