The TacFire SSPK45ACPLPK AR Build Kit Pistol 45 ACP AR-10 Black Nitride Steel 5/8"-24 TPI Sports South Exclusive gives builders a complete upper and lower parts solution for a compact .45 ACP AR pistol. Centered around a 7.5" nitride barrel with a threaded muzzle and birdcage flash hider, this kit pairs a stripped billet AR-15 upper receiver with an ultra-slim 7" M-LOK free float handguard for a clean, modern profile. A dedicated 45 ACP Glock-pattern bolt carrier group, Mil-Spec charging handle, and full lower parts kit round out the components so you can finish your build with confidence.

This configuration is ideal for shooters wanting a compact AR-pattern pistol for range use, training, or home protection, with the soft-shooting characteristics of 45 ACP. The pistol buffer tube with foam cover, 5.5 oz buffer and spring, and A2-style grip provide familiar ergonomics while keeping the platform streamlined. With thoughtfully matched parts and a black nitride finish on critical components, this TacFire kit reflects the brand’s focus on practical design and dependable performance for AR builders.

Key Features:

• Manufacturer: TacFire
• Model: AR Build Kit
• Caliber: 45 ACP
• Action: AR Pistol
• Barrel Length: 7.5"
• Threaded Barrel: 5/8"-24 TPI with birdcage flash hider
• Handguard: 7" ultra slim clamp-on M-LOK free float
• Upper Receiver: AR-15 billet with M4 feed ramps
• Bolt Carrier Group: 45 ACP Glock-pattern
• Included Components: Upper receiver, barrel, BCG, charging handle, handguard, buffer tube assembly, lower parts kit, A2 pistol grip