Product DescriptionThe TacFire BU3008 complete upper assembly is built for AR-15 lower receivers and chambered in 300 AAC Blackout. Designed for compact builds, it features an 8 inch barrel, a pistol-length gas system, and an included bolt carrier group for a more complete upper setup. An 8 inch free-float handguard helps provide improved handling and accessory clearance, while the threaded muzzle is fitted with an A2-style muzzle device. Finished in black, this upper assembly is a strong option for shooters building or upgrading an AR-15 platform in .300 AAC Blackout.Product Highlights Complete AR-15 upper assembly chambered in 300 AAC Blackout for compact rifle or pistol builds Includes bolt carrier group for added convenience during installation and setup 8 inch barrel with 1:8 twist rate to support a wide range of .300 AAC Blackout loads Pistol-length gas system paired with an 8 inch free-float handguard for compact performance 5/8x24 threaded muzzle with A2-style muzzle device and durable black finish Specs Brand: TacFire Manufacturer Part Number: BU3008 UPC: 729205511387 Product Type: Complete upper assembly Platform Fit: AR-15 Caliber: 300 AAC Blackout Barrel Length: 8 in Twist Rate: 1:8 Gas System: Pistol-length Handguard: 8 in free-float handguard Muzzle Thread Pitch: 5/8x24 Muzzle Device: A2-style muzzle device Included Components: Bolt carrier group Finish: Black Weight: 3.78 lb 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 product&';s manufacturer.