Lantac M-Spec 7.62/.308 Bolt Carrier Group Nitride for DPMS Rifles

The Lantac M-SPEC 7.62/.308 Bolt Carrier Group in QPQ Black Nitride delivers precision machined milspec dimensions and tolerances for reliable, real-world performance. The carrier is built as a full auto style unit with increased mass, crafted from 8620 steel and heat treated, then hard turned and ground to exact internal dimensions in line with military specifications. The Bolt itself is machined from Carpenter 158 or 9310, shot peened and hard turned/ground to ensure strength and durability, while the entire assembly is finished in a QPQ nitride coating to provide superior corrosion resistance and long-lasting performance in demanding conditions. Enhancing smooth operation, the BCG is fitted with a Lantac CP-R360-H domed head cam pin, precision machined from 17-4PH stainless steel, hand polished and hardened to H900, which reduces friction and wear within the upper receiver. The M-SPEC line is designed for budget builds where quality and reliability remain paramount, and this unit is suitable for DPMS-pattern rifles. Each component reflects meticulous craftsmanship, from the MPI Carpenter 158 or 9310 bolt to the hard turned and ground carrier, culminating in a hardened, nitride finish that stands up to rigorous use. Made in the USA with a lifetime warranty, this Lantac BCG embodies dependable performance for serious shooters.