Product DescriptionThe TacFire BU45ACP4 is a compact .45 ACP AR-platform upper assembly built around a short 4-inch barrel for maneuverable builds. This upper features a black finish, a free-float style handguard for accessory mounting, and a threaded muzzle (5/8x24) for compatible muzzle devices. It is listed as including a bolt carrier group, making it a convenient option for completing a dedicated .45 ACP upper setup.Product Highlights AR-platform .45 ACP upper assembly with compact 4-inch barrel for short, handy configurations Includes bolt carrier group (BCG) for a more complete upper assembly solution 5/8x24 muzzle threads support common .45-caliber muzzle devices and suppressor mounts 1:16 twist rate barrel specification for .45 ACP/Auto applications Black finished upper with ventilated handguard for reduced weight and improved airflowSpecs Brand: TacFire Manufacturer Part Number: BU45ACP4 UPC: 729205554735 Caliber: .45 ACP / Auto Barrel Length: 4 in Twist Rate: 1:16 Thread Pattern: 5/8x24 Color: Black Included: Bolt Carrier Group Weight: 3.2 lb Approx. Package Dimensions (L x W x H): 20.2 x 3.2 x 3.1 inDisclaimer: 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.