The complete NBS mil-spec bolt assembly for the .223 Remington/5.56x45mm is a great addition to your AR-15 platform. The quality NBS bolt assembly offers precise fit, function, and reliability for your next build. The bolt includes all of the critical parts (gas ring & extractor) and is ready to be installed in a bolt carrier.
- AR-15 Bolt Assembly
- Caliber: .223/5.56/300AAC
- Bolt Material: 9310 Steel
- MPI (Magnetic Particle Inspected)
- Bolt Coating: Nickel Boron
MADE IN THE USA
BACKED BY THE NBS LIFETIME WARRANTY!