The heart of a reliable AR-15 build is a quality 5.56 bolt carrier group assembly. These are the same high quality BCG’s we make for law enforcement and military groups around the world. Machined to mil-spec dimensions and finished in a beautiful black nitride finish this bolt will continue to run and looks great doing so.
Specifications:
- Machined from 8620 alloy steel with a QPQ black nitride finish
- 5.56 Bolt is machined from Carpenter 158 tool steel
- High pressure tested (HPT) and magnetic particle inspected (MPI)
- Shot peened
- M16-cut/full auto capable carrier
- Properly staked gas key secured to the carrier with grade 8 fasteners
- Carrier has forward assist serrations
