NBS AR-15 9310 Bolt Assembly - Nickel Boron - 51014

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!