Product Description The Radian Weapons Enhanced Bolt Carrier Group (BCG) for AR15/M16 platform weapons is a precision-engineered upgrade built to minimize carrier tilt and reduce friction inside the upper receiver by relocating key bearing surfaces. Constructed from premium materials and finished with a durable black nitride coating, every component meets or exceeds MilSpec standards for performance, reliability, and longevity. Whether you are building a competition rifle, a duty carbine, or a high-end range tool, the Radian Enhanced BCG delivers smooth, consistent cycling and the peace of mind that comes from genuine MilSpec-grade engineering. Product Highlights Engineered specifically for .223/5.56 NATO AR15/M16 platforms, offering a direct drop-in fit with improved bearing geometry Bolt machined from case hardened 9310 steel and shot peened, then coated with a black nitride finish for outstanding wear and corrosion resistance Carrier billet machined from case hardened 8620 steel with a black nitride finish, reducing friction and extending service life Gas key crafted from 4130 steel, fastened with Grade 8 hardware and properly staked to prevent loosening under high-round-count use All materials, tolerances, and coatings meet or exceed MilSpec standards, ensuring proven reliability across demanding conditions Specs Brand: Radian Weapons MPN: R0081 UPC: 810098420259 Compatible Platform: .223/5.56 NATO AR15/M16 Bolt Material: Case hardened 9310 steel, shot peened Bolt Finish: Black nitride Carrier Material: Billet machined case hardened 8620 steel Carrier Finish: Black nitride Gas Key Material: 4130 steel Gas Key Hardware: Grade 8, properly staked Weight: 11.4 oz Product Type: Bolt Carrier Group Finish Color: Black Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.