!
Buy it online at https://copsgunshop.net/shop/aero-precision-5-56-bolt-carrier-group-complete-nickel-boron/. Buyer pays shipping or sales tax. No trades.
Our upgraded nickel boron bolt carrier group is an eye catching addition to your AR build. Mil-spec dimensions and coating ensure the highest quality and correct component interface.
Features:
- Machined from 8620 Tool Steel (Carrier) and 9310 Steel (Bolt)
- Carrier has forward assist serrations
- Shrouded firing pin
- Nickel Boron Coating inside and out (Bolt, Carrier, and Gas Key)
- Forged Mil-Spec gas key attached with Grade 8 hardware and Properly staked.
- 5.56 Bolt is shot Peened and MPI
- Mil-Spec Extractor Spring, black extractor insert, Viton O-Ring
- Tool Steel Extractor
- High quality BCG
