Daniel Defense
Premium 5.56/.223 and .300 Blackout BCG with heavy phosphate coating, chrome-lined carrier, and extractor booster.

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Daniel Defense Complete Bolt Carrier Group Assembly, Black - Reliable Performance - 04-013-19032
Daniel Defense Bolt Carrier Group BCG Complete 5.56mm NATO
This Daniel Defense bolt carrier group is the complete 5.56mm carrier group used for DD-pattern builds. It uses an 8620 steel carrier, Carpenter 158 bolt, heavy phosphate coating, chrome-lined carrier bore and gas key, properly staked gas key, and an extractor booster for reliable extraction.
The bolt is shot peened, high-pressure tested, and magnetic-particle inspected. It is compatible with 5.56 NATO, .223 Remington, and .300 Blackout, making it a clean premium option for builders who want Daniel Defense's standard complete-rifle carrier group as a standalone part.
Add the Daniel Defense Complete Bolt Carrier Group (5.56mm) to your build and see how it enhances your platform.