Aero Precision's upgraded nickel boron bolt carrier group is an eye catching addition to your AR build. Mil-spec dimensions and a super low friction NiB coating ensure the highest quality and correct component interface.
- No Aero 'A' Logo
- Machined from 8620 Tool Steel (Carrier) and 9310 Steel (Bolt)
- Forward assist serrations
- Mil-Spec 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
- 100% Made in USA