Product DescriptionThe Ballistic Advantage 8.3-inch .300 Blackout (7.62x35mm) Hanson/DRP profile AR-15 barrel is built for compact builds using a pistol-length gas system. It is machined from 4150 Chrome Moly Vanadium steel and finished with a QPQ corrosion-resistant treatment for long-term durability. This Performance Series barrel features a Nickel Boron coated M4 feed ramp extension and is HP and MPI tested for added confidence. A pinned low-profile gas block is included; Hanson barrels are not designed to work with aftermarket piston kits.Important: Ensure compliance with all applicable NFA/ATF rules and regulations when pairing barrel length with the appropriate lower receiver configuration.Product Highlights 8.3" .300 Blackout AR-15 barrel optimized for compact pistol-length gas system builds 4150 Chrome Moly Vanadium steel construction with durable QPQ corrosion-resistant finish BA Hanson/DRP profile with included pinned low-profile gas block Nickel Boron coated M4 feed ramp extension for smooth, reliable feeding High Pressure (HP) and Magnetic Particle Inspected (MPI) tested for quality assuranceSpecs Brand: Ballistic Advantage Manufacturer Part Number: BABL300002F UPC: 819747022578 Caliber: .300 AAC Blackout / 7.62x35mm Barrel Length: 8.3" (8.30") Material: 4150 Chrome Moly Vanadium Steel Finish: QPQ Gas System Length: Pistol Twist Rate: 1:7 Muzzle Threads: 5/8-24 Profile: BA Hanson / DRP Gas Block Journal: 0.750" (low-profile gas block included) Feed Ramps/Extension: M4 feed ramp extension, Nickel Boron coated Testing: HP & MPI tested Weight: 19 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.