Product DescriptionReplace a worn barrel or complete your next AR-style build with the Diamondback DB Barrel in 5.56x45mm NATO. This 16-inch, medium-profile barrel is made from durable 4150 chrome moly vanadium (CMV) steel and finished in black nitride for enhanced wear and corrosion resistance. Designed around a carbine-length gas system and a 1:8 twist rate, it's a practical upgrade for reliable function and consistent accuracy.Product Highlights 16-inch 5.56x45mm NATO barrel for AR-style builds and OEM replacement applications 4150 chrome moly vanadium (CMV) steel construction for strength and service life Black nitride finish helps resist corrosion and wear while maintaining a clean, low-glare look Carbine-length gas system configuration for compatible cycling on carbine setups 1:8 twist rate to support a wide range of common 5.56/.223 bullet weightsSpecs Brand: Diamondback Model: DB Barrel Manufacturer Part Number: 556C16M50B8R UPC: 815875019053 Caliber: 5.56x45mm NATO Barrel Length: 16 in Gas System Length: Carbine Profile: Medium Profile Material: 4150 Chrome Moly Vanadium (CMV) Steel Finish: Black Nitride Rifling Twist: 1:8 Weight: 1.9 lb (listed)Disclaimer: 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.