The Aero Precision Black Nitride Bolt Carrier Group (BCG) is a high quality addition to your AR-15 build.
- M16-cut carrier
- Machined from 8620 steel
- Carrier has forward assist serrations
- Black Nitride Finish – advanced lower friction coating that minimizes the need for lubricants and cleaning
- Properly staked gas key
- 5.56 Bolt is machined from Carpenter 158 tool steel
- Shot peened
- HPT tested/MPI marked
- Black o-ring insert on extractor
- High quality BCG
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Quality product great performance
I got almost all my
I got almost all my part from ar15 discount. Every quick delivery and great prices everything went together smoothly. Love how easy it is to get everything you want in one spot
Disappointed that the Black Nitride finish had me replacing the firing pin retaining pin.
Aint been out to shoot it yet.