Product Description The TacFire BU-300-10 complete pistol upper assembly is a ready-to-install AR-platform upper chambered in .300 Blackout, built for a compact, maneuverable setup. It features a 10-inch black nitride barrel paired with a black anodized 7075-T6 aluminum receiver and an M-LOK handguard for accessory mounting. This upper ships complete with a bolt carrier group, making it a convenient upgrade or build component for a compatible lower receiver. Product Highlights Complete, ready-to-use AR-platform pistol upper assembly chambered in .300 Blackout 10-inch barrel with durable black nitride finish for wear and corrosion resistance Black anodized 7075-T6 aluminum receiver for strength and reduced weight M-LOK handguard provides versatile, low-profile accessory attachment Includes bolt carrier group (BCG) for a more complete out-of-the-box setup Specs Brand: TacFire Manufacturer Part Number: BU30010 UPC: 729205508325 Platform/Fit: AR-Platform Caliber: .300 Blackout Upper Type: Complete pistol upper assembly Barrel Length: 10 in Barrel Finish: Black Nitride Receiver Material: 7075-T6 Aluminum Receiver Finish: Black Anodized Handguard: M-LOK Muzzle Device: A2 Flash Hider Included: Bolt Carrier Group (BCG) 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.