NBS AR-15 9310 Bolt Assembly - Nickel Boron - 51014
Only 8 left in stock
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-15Â Bolt Assembly
- Caliber:Â .223/5.56/300AAC
- Bolt Material:Â 9310 Steel
- MPI (Magnetic Particle Inspected)
- Bolt Coating:Â Nickel Boron
MADE IN THE USA
BACKED BY THE NBS LIFETIME WARRANTY!
NBS — Our In-House Brand for Builders Who Demand Reliable Performance and Real Value.
Designed for builders who demand reliable performance and real value without unnecessary hype or inflated pricing. NBS stands for "No Bullshit."
Built on Strong Industry Partnerships
Through the strong partnerships AR15Discounts has built with trusted suppliers and vendors, we regularly gain access to premium components often manufactured by or for leading industry names. By purchasing these in volume, we bring them to you under the NBS label, ensuring proven quality reaches your build at a fair price, without the added cost of extensive marketing.
Quality You Can Trust
Every NBS product is specified to the exacting standards we apply to our own rifles. Each component features precision CNC machining, American-made key components where it counts, robust materials, dependable steels, and durable finishes engineered for long-term reliability. These items are either sourced from reputable OEMs or carefully assembled in-house using established name-brand elements, maintaining consistent excellence throughout the lineup.
Complete Solutions for Serious Builders
From stripped and complete uppers to bolt carrier groups, handguards, lower parts kits, and beyond, NBS provides a unified, affordable selection that allows you to complete confident, high-performing builds.
Backed by a Limited Lifetime Warranty
All NBS products come with our Limited Lifetime Warranty for the original owner, covering defects in materials and workmanship. AR15Discounts stands firmly behind these parts because, as shooters ourselves, we use and trust them, delivering honest value and gear you can rely on.
| Weight | 4 oz |
|---|---|
| Dimensions | 3 × 0.75 × 0.75 in |
| MPN | 51014 |
| UPC | 999996289 |
Compliance
NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.
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Nice bolt!
Everything is always top notch with AR15Discounts. Done a lot of business and will do plenty more!! Great prices, quality and always the guarantee, cant beat it!!
