Product DescriptionThe Ballistic Advantage Classic Series 16-inch 5.56x45mm NATO barrel (BABL556014MC) is built for dependable AR-15 performance with a chrome-lined bore and chamber for long-term durability and easier maintenance. Machined from Chrome Moly Vanadium (CrMoV) steel and finished with a manganese/black phosphate coating, this M4-profile barrel features a carbine-length gas system and a threaded muzzle for compatibility with common 1/2x28 muzzle devices. A phosphate-coated M4 feed ramp extension helps support reliable feeding in demanding conditions.Product Highlights 16-inch Classic Series AR-15 barrel chambered in 5.56 NATO (commonly compatible with .223 Remington loads) Chrome-lined bore and chamber for enhanced corrosion resistance and service life Carbine-length gas system paired with an M4 profile for proven handling and function CrMoV (Chrome Moly Vanadium) steel construction with manganese/black phosphate finish Threaded muzzle (1/2x28) and phosphate-coated M4 feed ramp extension for broad compatibilitySpecs Brand: Ballistic Adv Manufacturer Part Number: BABL556014MC UPC: 819747020208 Caliber: 5.56x45mm NATO Barrel Length: 16 in Barrel Profile: M4 Profile Bore/Chamber: Chrome-lined Gas System Length: Carbine Muzzle Threads: 1/2x28 Gas Block Journal: 0.750 in Twist Rate: 1:7 Material: Chrome Moly Vanadium (CrMoV) steel Finish: Manganese/Black Phosphate Feed Ramps: Phosphate-coated M4 feed ramp extension Firearm Fit: AR-15 Weight: 28 oz Country of Manufacture: United StatesDisclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product's manufacturer.