Built for dependable cycling in demanding conditions, the ANGSTADT AR15 BCG 556NATO BLK brings precision construction and practical durability to MIL-SPEC AR-15 platforms. Designed around 5.56 NATO, this complete bolt carrier group pairs robust materials with a low-friction black nitride finish, supporting smooth operation and consistent performance through extended range sessions. It’s a smart choice for shooters seeking a reliable component upgrade.
Its 8620 steel carrier and MPI-tested 9310 steel bolt are heat-treated and shot-peened for strength and stress resistance. The nitride treatment helps resist corrosion and fouling while simplifying routine cleaning. Supplied fully assembled with a properly staked gas key, cam pin, firing pin, and retaining pin, it’s ready for straightforward installation in a compatible upper receiver. Multi-caliber compatibility makes it a versatile option for appropriately configured builds while retaining its 5.56 NATO focus.
- Complete bolt carrier group for 5.56 NATO, .223 Rem, and .300 BLK
- Full-auto-rated carrier made from durable 8620 steel
- MPI-tested, shot-peened 9310 steel bolt
- Heat-treated components for added strength and stress resistance
- Black nitride finish helps resist corrosion and reduce fouling
- Properly staked gas key and included installation components
- Assembled and ready for compatible MIL-SPEC AR-15 upper receivers
Choose the ANGSTADT AR15 BCG 556NATO BLK for a carefully engineered, fully assembled component that balances proven materials, protective finishing, and broad caliber utility. Whether refreshing a compatible upper or outfitting a multi-caliber setup, this bolt carrier group delivers dependable functionality and easier upkeep in a clean, ready-to-install package. Add Angstadt Arms precision to your build with a BCG made for lasting performance.