Product DescriptionThe CMC Triggers BBL556001 is a compact 7.50-inch AR-style barrel chambered in 5.56 NATO, built from Chrome Moly Vanadium (CMV) steel and button rifled for consistent performance. Finished in Black Nitride for enhanced wear and corrosion resistance, it features a 1:7 twist rate and 1/2x28 muzzle threads for compatibility with common .223/5.56 muzzle devices.Product Highlights 7.50" 5.56 NATO barrel designed for compact AR-style builds Chrome Moly Vanadium (CMV) steel construction for strength and durability Button-rifled bore for consistent accuracy potential Black Nitride finish helps resist corrosion and surface wear 1:7 twist and 1/2x28 threading to support a wide range of loads and muzzle devicesSpecs Brand: CMC Triggers Manufacturer Part Number: BBL556001 UPC: 850040016925 Caliber: 5.56x45mm NATO Barrel Length: 7.50" Material: Chrome Moly Vanadium Steel Barrel Type: Button Rifled Finish: Black Nitride Twist Rate: 1:7 Muzzle Thread Pattern: 1/2x28 Diameter: 0.750" Weight: 1.02 lbDisclaimer: 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.