Product Description The LUTH-AR BA-F11-7 Government profile 11.5 inch barrel assembly is a versatile AR-15 build component designed to deliver classic handling with modern performance. Built from durable 4150 Chrome Moly Vanadium (CMV) steel and made using a button broached rifling process, this 5.56mm barrel features a fast 1:7 right-hand twist to help stabilize a wide range of bullet weights. It comes configured with an F-marked front sight base and a 2-piece handguard for a traditional, ready-to-install setup, and it is not chrome lined. Product Highlights 11.5 inch Government profile 5.56mm barrel assembly for AR-15 builds and upgrades 1:7 right-hand twist rate optimized for stabilizing many common 5.56 bullet weights Button broached rifling with 4150 Chrome Moly Vanadium (CMV) steel construction Includes F-marked front sight base and 2-piece handguard for a classic carbine-style configuration 1/2x28 muzzle threading and 0.750 inch diameter at the gas block journal Specs Brand: LUTH-AR Manufacturer Part Number: BA-F11-7 UPC: 812058031772 Platform Fit: AR-15 Model/Profile: Government Caliber: 5.56mm Barrel Length: 11.50 in Twist Rate: 1:7 RH Rifling Method: Button broached Barrel Material: 4150 CMV (not chrome lined) Muzzle Thread Pattern: 1/2x28 Gas Block Journal Diameter: 0.750 in Barrel Type: Carbine length 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 products manufacturer.