The AR-10 Full-Auto Style Bolt Carrier Group (BCG) is engineered for increased mass and lock time, providing enhanced reliability and performance. Our DPMS Style .308 Win BCG is precision-machined from durable 8620 steel and features a Carpenter 158 or 9310 precision hard-ground bolt, ensuring exceptional strength and longevity. The entire carrier assembly is coated with NiB (Electroless Nickel Boron) using the patented UCT EXO process, which offers superior lubricity with an impressive friction coefficient of .02 and a surface hardness of 82-85 Rockwell C. This advanced coating outperforms standard NiB coatings, contributing to smoother operation. The patent-pending design of the carrier incorporates unique shrouded and forward-facing gas ports, which have been resized to optimize gas venting compared to standard carriers. This innovation results in a flatter shooting experience with a smoother energy pulse, while also running cooler and cleaner. It minimizes pressurization within the upper receiver, particularly beneficial when operating a suppressed barrel. A flared boss at the tail of the carrier enhances its positioning within the buffer tube during cycling, allowing for a flatter, more controlled reciprocation of the assembly. All critical dimensions are hard turned and ground after heat treatment to ensure precision. Every E-BCG features the Lantac CP-R360-H patent-pending domed cam pin, crafted from 17-4PH stainless steel and hardened to H900 condition (approximately 45RC). This ultra-smooth head reduces wear within the upper receiver, enhancing the overall lifespan of your firearm. The BCG's increased weight contributes to improved lock time and smoother operation. Gas keys are properly staked at four points and only grade 8 fasteners are used in assembly, ensuring durability and reliability. The E-BCG's forward porting and unique shape further assist in reducing internal pressurization within the upper receiver, especially when utilizing short barrel rifles with suppressors. Experience the next level of performance and reliability with our AR-10 Full-Auto Style BCG.