TacFire AR Build Kit Lower Features The TacFire AR Build Kit centers on a 7.5 inch 5.56 USA made barrel paired with a complete bolt carrier group giving builders the core components needed for reliable semi-auto cycling right out of the box. A mil-spec USA made upper receiver houses the barrel and bolt carrier group maintaining compatibility with standard AR components and accessories. The slim 7 inch free float M-LOK hand guard lets the barrel float independently of the hand guard improving accuracy potential while giving builders room to mount lights grips and other accessories. A threaded flash forwarder on the muzzle end supports further customization for builders who want to add a compensator or other muzzle device down the line. Rounding out the build the kit includes a complete lower parts kit with a black A2 pistol grip and thumb safety a standard receiver end plate and a mil-spec commercial castle nut made from steel. The pistol buffer tube is aluminum with a foam cover for comfort and grip paired with a heavy buffer and buffer spring tuned for reliable cycling in a pistol length configuration. A mil-spec charging handle dust cover and forward assist complete the mil-spec feel and function that builders expect from a proper AR build. Right handed and finished in black this kit is available for sale at GrabAGun for anyone ready to assemble their own semi-auto AR pistol from a single complete parts set. TacFire AR Build Kit Lower Specifications Manufacturer: TacFire Model: AR Build Kit Caliber: 5.56 Barrel Length: 7.5 Color: Black Action: Semi-Auto Handedness: Right Hand Firearm Type: AR Platform Grip Type: Black A2 Pistol Grip Safety: Thumb Stock Description: Buffer Tube Available At: GrabAGun