The TacFire SSRK45ACPLPK AR Build Kit Sports South Exclusive 45 ACP AR-Platform Black Nitride provides a complete upper and lower parts kit for building a dedicated .45 ACP AR rifle. Centered around a 16" nitride barrel and slim 15" M-LOK free float handguard, this kit pairs a stripped billet AR15 upper receiver with a .45 ACP bolt carrier group, standard charging handle, and birdcage flash hider to create a smooth-running, semi-auto AR platform.

Designed for builders who want a straightforward path to a .45 ACP AR, the kit includes an aluminum buffer tube assembly, 5.5 oz 9mm buffer and spring, USA-made lower parts kit, and standard A2 style black pistol grip. It is well suited for range use, training, and general recreational shooting where the softer recoil and larger bore of .45 ACP are appreciated. TacFire’s attention to component selection and machining offers a solid foundation for a reliable, purpose-built AR build.

Key Features:

• Manufacturer: TacFire
• Model: AR Build Kit
• Caliber: 45 ACP
• Action: Semi-Auto
• Barrel Length: 16"
• Twist Rate: 1:16"
• Handguard: 15" Slim M-LOK Free Float
• Bolt Carrier Group: 45 ACP BCG
• Upper Receiver: AR15 Stripped Billet With M4 Feed Ramps
• Grip: Standard A2 Style Black Pistol Grip
• Includes: Lower Parts Kit And Buffer Tube Assembly
• Finish: Black Nitride
• Material: Aluminum