NBS AR-10 / 308 / 6.5 Creedmoor Dual Ejector Bolt Carrier Group – Black Nitride - 17897
Out of stock
This NBS Black Nitride .308 Complete BCG is compatible with any AR10, 6.5 Creedmoor, .308 or 7.62×51 rifle that follows the DPMS pattern. The carrier includes forward assist serrations and the bolt is (MPI) certified. The double ejectors address the problems most rifle builders encounter with AR10 variant calibers, and with the addition of a second ejector, you can expect flat loading, powerful and consistent ejection.
Bolt:
- MPI Inspected
- 9310 Alloy Steel
- Hardened Steel Extractor
- Double Ejector
- Milspec Gas rings (3)
- Black Extractor Insert
- 8620 Steel
- Heavy Duty Full Cut Design
- Grade 8 Gas Key Screws, Staked
- Gas Key Material – 4140
- 8620 Steel Nitride Finish
- Mil-Spec Firing Pin
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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.
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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 | 17.7 oz |
|---|---|
| Bolt Material | 9310 Steel |
| Cartridge Compatibility | .308/6.5 Creedmoor |
| Finish | Salt Bath Nitride |
| Carrier Profile | M16 |
| High Pressure Tested | Untested |
| Magnetic Particle Inspected | Magnetic Partical Inspected |
| Platform | AR-10 / LR-308 |
| Bolt Finish | Salt Bath Nitride |
| MPN | 17897 |
| UPC | 9999917897 |
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.
Customer Reviews
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US
Well built! Good BCG!
Very sturdy. Exact match of some other namebrand versions.
USNBS AR-10 BCG
After only 25 rds function just fine
USI haven't shot with this yet, but it looks great so far.
This look pretty much identical to a Toolcraft, so to my calibrated eyeballs it seems to be well within spec.
USBolt carrier
It looks great literally better than what I was expecting. Ready for a fresh build and eager to put some rounds through a fresh build.
USExcellent value for a 308/6.5 BCG
Purchased one of these BCGs while it was on sale to complete a 6.5 Creedmoor build. The dual ejectors and smaller pin were also a nice feature. This BCG is really the only "budget" part on the rifle, other than the discounted Stag-branded receivers I got on an overstock sale from Aero. I took a chance, figuring at worst if it headspaced or cycled poorly I could get a better bolt to put in the carrier and write it off to lessons learned. I've now got about 100 rounds through the gun, with zero cycling/ejection issues, good headspace, and great accuracy. Most of the initial rounds have been break-in followed by load development so accuracy varies by load, but most were 1 MOA or better with the best being between .6 and .7 MOA. I've had great luck with this one so far, and don't plan on needing to go with something else. I think this one will work just fine. So far, happy with the part, the price, and the good communication and quick shipping from AR15 Discounts. Build info: Aero upper, lower, rail. Ballistics Advantage 22" 6.5 Creedmoor barrel, Triggertech Diamond Series two stage, Magpul PRS lite stock, YHM QD titanium Phantom 308.
