AR-15 12″ Pistol Brace Build Kit With Milspec Buffer Tube (Anodized Purple)

Description

The AR-15 12″ Pistol Brace Build Kit consolidates three critical upper and lower receiver components into a single Anodized Purple package, designed for builders assembling a 5.56 Caliber AR-15 pistol. This kit includes a six-position Milspec Buffer Tube assembly, an Ultralight Series skeletonized pistol grip, and a proprietary free-float rail system, all finished in a uniform Anodized Purple color. The rail system features a 12 inch length with M-LOK attachment slots along the sides and bottom, locking to the receiver via six screws against the included barrel nut. This creates a monolithic top rail platform that aligns with a flattop receiver’s Picatinny standard, maintaining co-witness for optics mounted forward of the ejection port.

The buffer tube kit provides the foundation for the lower receiver assembly, including a castle nut, end plate, 3 oz stainless steel carbine buffer, and a chrome silicon coated spring. The tube and receiver extension are constructed from T6 aluminum, ensuring compatibility with SBA Tactical braces and other standard stabilizing accessories. The total assembly weight for the tube kit is 9.6 oz, keeping the rear end light without sacrificing structural integrity. The included pistol grip features an ergonomic design with finger grooves and a skeletonized cutout that reduces mass to 3.6 oz while maintaining rigidity.

The handguard weighs 9.1 oz including its proprietary barrel nut. The rail slides over the nut and clamps flush to the upper receiver, eliminating gaps at the interface. M-LOK slots run the length of the forend at three, six, and nine o’clock positions, providing versatile accessory mounting options. The internal diameter measures 1.34 inches, fitting standard 5.56 Caliber barrels. All three components are US Made and anodized to a uniform Purple finish, ensuring consistent appearance and corrosion resistance. The kit provides the buffer assembly, grip, and rail required to complete an AR-15 pistol lower and upper pairing, requiring only the addition of a Pistol Brace, lower parts, and barrel assembly.