Product DescriptionReplace a worn barrel or complete your next AR-15 build with the Diamondback DB Barrel in 6.5 Grendel. This 18-inch, mid-length gas barrel is crafted from durable 4150 chrome moly vanadium (CMV) steel and finished in black nitride for enhanced wear and corrosion resistance. A medium profile, 1:8 twist, and 5R button rifling help deliver consistent performance, while M4 feed ramps support smooth feeding.Product Highlights 18-inch 6.5 Grendel AR-15 barrel with a mid-length gas system for a balanced shooting setup 4150 chrome moly vanadium (CMV) steel construction for strength and long service life Black nitride finish for improved corrosion resistance and reduced wear 1:8 twist rate with button-rifled 5R rifling designed for accuracy and consistency Medium profile barrel with M4 feed ramps and 5/8x24 muzzle threads for common 6.5 Grendel devicesSpecs Brand: Diamondback Model: DB Barrel Manufacturer Part Number: 65M18M50B8R UPC: 815875019084 Platform: AR-15 Caliber: 6.5 Grendel Barrel Length: 18 in Gas System Length: Mid-Length Barrel Profile: Medium Barrel Material: 4150 Chrome Moly Vanadium (CMV) Steel Finish/Coating: Black Nitride Twist Rate: 1:8 Rifling: Button Rifled 5R Muzzle Threads: 5/8x24 Feed Ramps: M4Disclaimer: 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.