Product Description Replace a worn barrel or complete your next AR build with the Diamondback DB Barrel in .300 AAC Blackout. This 16-inch barrel is made from durable 4150 chrome moly vanadium (CMV) steel and finished in black nitride for enhanced corrosion resistance and long-lasting performance. Built with a pistol-length gas system and a heavy profile, it&';s a solid choice for dependable function and consistent shooting characteristics. Product Highlights 16-inch .300 AAC Blackout replacement barrel for AR-style builds and upgrades 4150 chrome moly vanadium (CMV) steel construction for strength and longevity Black nitride finish helps resist corrosion and wear Pistol-length gas system for compatibility with pistol-length AR gas setups 1:8 twist rate to support a wide range of .300 Blackout bullet weights Specs Brand: Diamondback Model: DB Barrel Caliber: .300 AAC Blackout (.300 Blackout) Barrel Length: 16 in Gas System Length: Pistol-length Profile: Heavy Material: 4150 Chrome Moly Vanadium (CMV) Steel Finish: Black Nitride Twist Rate: 1:8 Muzzle: Threaded (threads visible) MPN: 300P16H50B8R UPC: 815875019039 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.