Product Description The TacFire BU45ACP16 complete rifle upper assembly is built to bring .45 ACP capability to compatible AR-platform builds. It ships fully assembled and ready to install on your lower receiver, featuring a durable 16-inch black nitride barrel, a black anodized 7075-T6 aluminum receiver, and a lightweight M-LOK handguard for easy accessory mounting. A bolt carrier group is included to help streamline your build and get you to the range faster. Product Highlights Complete AR-platform upper assembly chambered in .45 ACP for powerful, pistol-caliber performance 16-inch black nitride barrel helps resist wear and corrosion for long service life Black anodized 7075-T6 aluminum receiver balances strength and weight M-LOK handguard provides a modern, modular mounting interface for lights, grips, and more Includes bolt carrier group for a more complete, ready-to-install upper setup Specs Brand: TacFire Manufacturer Part Number: BU45ACP16 UPC: 729205516054 Caliber: .45 ACP Platform/Fit: AR-Platform (AR-15 style) Barrel Length: 16 in Barrel Finish: Black Nitride Barrel Twist Rate: 1:16 Receiver Material: 7075-T6 Aluminum Receiver Finish: Black Anodized Handguard: M-LOK Handguard Finish: Black Muzzle Device: A2 Flash Hider Sight Setup: Optic Ready Included: Bolt Carrier Group 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.