TacFire .45 ACP 4 inch Upper Receiver 1-16 Twist 5/8x24 Black. 45 ACP 4 inch Upper Receiver your shooting experience will be increased beyond what you ever thought was possible due to its secure fit and ability to provide an unyielding grip. These AR Handguards & Forends by the industry experts at TacFire are made from top of the line components that will provide you long-lasting durability. For quite some time TacFire has been dedicated to producing high quality products that are ideally suited for shooters from nearly any discipline and the TacFire .45 ACP 4 inch Upper Receiver is the direct result of TacFire's commitment to fulfilling what each user requires. Right here at OpticsPlanet we make the effort to see to it that you find the product you have been searching for and the TacFire .45 ACP 4 inch Upper Receiver is one of the many firearm devices that we are very pleased to carry. For an excellent way to arm yourself with the best possible gear for all your shooting requirements go for the TacFire .45 ACP 4 inch Upper Receiver. Specifications for TacFire .45 ACP 4 inch Upper Receiver: Manufacturer: TacFire Caliber: .45 ACP Barrel Length: 4 - 4.9 in 4 in Additional Features: 1-16 in Twist TacFire BU45ACP4 45 ACP 4" TacFire BU45ACP4: .45 ACP 4 inch Upper Receiver 1-16 Twist 5/8x24 Black