Description
Always Armed 5.56 NATO/.300 Blackout Bolt Carrier Group
- Made in the USA
- Compatible with .223/5.56 NATO/.300 BLACKOUT
- MPI & HPT
- Mil-Spec Bolt Machined from 158 Carpenter Steel
- Carrier Machined from 8620 Aircraft Grade Steel
- 4140 Steel Extractor
- 4130 Staked Gas Key