Sale!
Midwest Industries MI-BCG-556EH Enhanced Black Nitride Bolt Carrier Group
Original price was: $134.36.$72.35Current price is: $72.35.
Description
.225/5.56 NATO AR15/M16 Full Auto BCG. Black Nitride Finish.
Features:
- Engineered to reduce carrier tilt and friction inside upper receiver
- Materials, tolerances, and coatings are used to meet or exceed milspec standards
- 9310 Hardened Bolt, Shot peened
- 8620 Billet machined and hardened carrier
- 4130 steel gas key — Grade 8 hardware with proper staking methods











