Radian Weapons Enhanced Bolt Carrier Group 5.56x45mm, Black

The Enhanced Bolt Carrier Group for AR-15 and M16 platform firearms is engineered to optimize performance by reducing carrier tilt and minimizing friction within the upper receiver. By strategically relocating key bearing surfaces, this design enhances smooth cycling and reliability under demanding conditions. Manufactured with precision, all materials, tolerances and coatings meet or exceed military specifications, ensuring exceptional durability and long-lasting performance. Built for shooters who demand the highest level of reliability, this bolt carrier group is a superior upgrade for any AR platform. .223 Remington/5.56x45mm AR-15/M16 (full-auto), compatible with both civilian and military-grade configurations for a wide range of applications Case hardened 9310 steel, shot-peened with black nitride finish bolt ensures a durable, long lasting component that can withstand heavy use while maintaining peak performance Billet-machined case hardened 8620 steel with black nitride finish carrier, offering enhanced strength, wear resistance and performance 4130 steel, attached using grade 8 hardware and proper staking techniques for a secure and durable gas key assembly