NBS .223/5.56/300 BLK Complete Bolt Carrier Group – Nickel Boron
- M16 style (Auto)
- Machined from 8620 tool steel
- Heat treated to mil spec
- Machined from 9310 tool steel
- Heat treated to military specifications
- Shot Peened
- MPI (Mag Particle Inspected)
- Machined from 17-4 Stainless Steel
- Heat treated to mil spec
- Machined from S-7 shock resisting tool steel
- Heat treated to mil spec
- Shot peened
- Extractor spring is made of stainless steel music wire
- Machined from 17-4 stainless steel
- Heat treated to milspec
Specifications
- Weight:Â 11.6 oz
- Length: 7.5″
- Finish: Â Nickel Boron (NiB)
- USA Made
- Covered by NBS Limited Lifetime Warranty
| Weight | 0.3270 oz |
|---|---|
| Options | w/ Logo, w/o Logo |
| Bolt Material | 9310 Steel |
| Finish | Nickel Boron |
| Cartridge Compatibility | .223/5.56 NATO/.300 BLK |
| Carrier Profile | M16 |
| High Pressure Tested | Untested |
| Magnetic Particle Inspected | Magnetic Partical Inspected |
| Platform | AR-15 |
| Bolt Finish | Nickel Boron |
| MPN | AR15-Bolt-Carrier-Group-Nickel-Boron |
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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United States
Works
Works as it should
United States
NBS Top Notch
I usually don’t writ to many reviews. I have had this BCG for a few years and have many from other manufacturers. I have to say that this is the nicest fit and finish over time. I think I have 10 BCG all together. Last few have been on sale from known manufacturers and don’t hold up to the finish on this NBS. Buy with confidence.
USNice BCG
This not only functions well it also adds a little flair to your build!
USNice bcg
Ran smooth. Looks grear
USNBS bolt carrier group
This product fit perfectly in my AR. Has worked as expected. Easy to clean.
