Upgrade your AR-15 with the Daniel Defense 5.56mm NATO/300 Blackout Full-Auto Compatible M16 Profile Complete Bolt Carrier Group (BCG), engineered for unmatched reliability and durability. Crafted in the USA, the carrier is machined from 8620 steel, heavy phosphate coated, and chrome-lined with properly staked gas keys for superior performance under intense conditions. The bolt, made from Carpenter 158 steel, is high-pressure tested, magnetic particle inspected, shot peened, and heavy phosphate coated, featuring an extractor booster for flawless cycling with 5.56mm and 300 Blackout rounds. Trusted by enthusiasts and professionals alike, this BCG delivers consistent feeding and extraction, making it ideal for both semi-auto and full-auto applications. Backed by Daniel Defense's 100% satisfaction guarantee, it's the pinnacle of quality for your rifle build. Purchase now at Battlehawk Armory to equip your firearm with the trusted performance of Daniel Defense!