TacFire 7.5 in AR 300Blk Pistol Build Kit with Lower Parts Kit Usa Made

The TacFire 7.5" Unassembled AR 300 Blackout Pistol Build Kit with Lower Parts Kit blends precision engineering with practical versatility, delivering a complete USA-made platform for a compact, controllable AR-300 pistol build. This kit centers on a black Parkerized 7.5" barrel with a 1:7 twist and a 5/8x24 spiral fluted Krink-style muzzle device, paired with a Slim M-Lok free-float handguard to maximize accessory mounting and lightweight handling. A 7075-T6 billet aluminum stripped upper provides robust strength, while the included 5.56 bolt carrier group and Mil-Spec charging handle support reliable cycling under varied conditions. The assembly also features a dust cover, forward assist, heavy buffer, pistol-length gas tube, and a low-profile gas block to optimize reliability and efficiency in a compact package. Completing the build are a complete pistol buffer tube, A2 black pistol grip, and a lower parts kit, all crafted in the USA to align with exacting standards of fit and finish. Whether upgrading an existing collection or constructing a dedicated AR-300 platform, this kit delivers the core components and compatibility needed for a purpose-built, high-performance handgun.