The LBE AR BUFFER TUBE KIT H3 BUFFER BLK from LBE Unlimited delivers a robust AR-15 buffer tube assembly designed for reliable performance and long service life, combining high quality components with precise manufacturing to support maintenance, upgrades, and field use. This kit features a six position mil-spec diameter buffer tube paired with a carbine length recoil spring, a matte black finish, and a complete set of Mil-Spec receiver end plate and castle nut, all engineered to ensure tight tolerances and dependable cycling under demanding conditions. The included H3 heavy recoil buffer delivers enhanced control and smoother function, helping to manage bolt bounce and reduce felt recoil in a variety of AR-15 platforms. Built to fit AR-15 rifles, this buffer tube complete assembly integrates seamlessly with stocks and buffer tubes to provide a solid, repeatable base for upgrades or repairs, while the matte black finish complements the rifles appearance and durability. Ideal for shooters seeking a dependable, ready-to-install buffer system, the H3BUFKT kit offers a balanced mix of durability, reliability, and value that supports years of service in any competitive, hunting, or tactical setting.