Product DescriptionThe Daniel Defense Mid-Length Government Profile barrel is built for AR-15 platform performance and long-term durability. Constructed from 4150 chrome moly vanadium steel and cold hammer forged, this 16-inch 5.56x45mm NATO barrel features a rugged phosphate exterior finish and a mid-length gas system for a proven balance of reliability and handling.Product Highlights Cold hammer forged 4150 chrome moly vanadium steel barrel designed for hard use and extended service life 16-inch length with mid-length gas system for dependable cycling and a smooth shooting feel Government profile for a practical balance of strength, weight, and heat management Phosphate/black phosphate exterior finish for enhanced corrosion resistance 1:7 twist rate to stabilize a wide range of 5.56 NATO projectile weightsSpecs Brand: Daniel Defense Type: AR-15 barrel Caliber: .223 Remington / 5.56x45mm NATO Barrel Length: 16 in Twist Rate: 1:7 Gas System Length: Mid-length Profile: Government Material: 4150 chrome moly vanadium steel Manufacturing Process: Cold hammer forged Bore: Chrome-lined Finish: Phosphate / black phosphate Weight: 1.95 lb UPC: 852548002462 Manufacturer Part Number: 0707709173018Disclaimer: 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 products manufacturer.