Build with dependable, MIL-SPEC performance using the BATTLEARMS BAD M4/M16 STANDARD BCG. Designed for 5.56 NATO and .223 Remington AR platforms, this complete bolt carrier group combines proven materials and a traditional phosphate finish for reliable everyday use. It’s a practical choice for a new build or as a replacement component.
The full-auto-profile carrier is machined from heat-treated 8620 steel, while the bolt is made from MPI-tested 9310 steel. A chrome-lined carrier interior supports smooth cycling and wear resistance, and the durable phosphate exterior helps protect against corrosion. The gas key is properly torqued and staked to MIL-SPEC requirements.
- Complete BATTLEARMS M4/M16 bolt carrier group
- Full-auto carrier profile
- Heat-treated 8620 steel carrier
- MPI-tested 9310 steel bolt
- Durable phosphate external finish
- Chrome-lined carrier interior
- Properly torqued and staked gas key
- Compatible with MIL-SPEC AR-15 and M16 upper receivers
- Designed for 5.56 NATO and .223 Remington platforms
- Fully assembled for straightforward installation
From Battle Arms Development, the BAD M4/M16 STANDARD BCG offers familiar specifications and robust construction for shooters, builders, and enthusiasts. Choose this MIL-SPEC AR-15 bolt carrier group when you want a proven component for your compatible upper receiver. Check your firearm’s specifications and confirm compatibility before installation.
