Product DescriptionBuilt for cloners and purists, the Rosco Manufacturing Stray Dog barrel delivers the same core features found on the Bloodline 16" USASOC barrel, paired with a classic, proven mil-spec black phosphate finish. It features a 5.56 NATO chamber, mid-length gas system, and a chrome-lined bore for durability and long service life in hard-use builds.Product Highlights 16" 5.56x45mm NATO barrel ideal for AR-15 pattern builds and clone-inspired configurations Mid-length gas system for reliable function and balanced recoil impulse Mil-spec black phosphate exterior finish for corrosion resistance and a traditional look Chrome-lined bore designed to enhance barrel life and ease of maintenance 4150 Chrome Moly Vanadium (CMV) steel construction with 1:7 twist and 1/2x28 muzzle threadsSpecs Brand: ROSCO MANUFACTURING Model: Stray Dog Manufacturer Part Number: CL-16.25-556-7-M UPC: 850039693335 Caliber/Chamber: 5.56x45mm NATO Barrel Length: 16" Gas System Length: Mid-Length Material: 4150 CMV (Chrome Moly Vanadium) Finish: Black Phosphate Bore: Chrome-lined Twist Rate: 1:7 Muzzle Thread: 1/2x28 Weight: 29.97 ozDisclaimer: 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.