NBS AR-15 9310 Bolt Assembly - Black Nitride - 51015
In stock
Made from 9310 Steel which has a high core hardness and high fatigue strength unlike standard Hot/cold rolled 9310 steels. This is a Mil-Spec bolt assembly with enhanced features for those looking to complete a bolt carrier group. This bolt will make sure your gun outshines the competition
– Fully Assembled 5.56/.223 Caliber Bolt
– Shot Peened
– MPI (Magnetic Particle Inspected)
– HPT (High Pressure Tested)
– Power Spring Kit
–Â Nitride QPQ Treated
– MPI/9310 ENGRAVINGS WILL VARY BY BATCH
| Weight | 4 oz |
|---|---|
| MPN | 51015 |
| UPC | 6290 |
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
- Reviews
- Questions
US
excellent
It served perfectly
USCheap price and seems to work fine
200 rounds with it, it seems to work fine and be cheaper than the other options.
USCan't beat it.
Great bolt at a great price. I use it for a backup. Greased, wrapped in t-shirt cotton and sitting in my pistol grip. Better to have a spare bolt and not need it than to need one and not have it!
USGreat looking bolt assembly for the price
I haven't used it yet. But it looks like it's constructed well. And I like that it has a warranty
USNBS Bolt Assembly
I purchased this Bolt as a spare and wanted one that met all Mil-Spec dimensions. After checking a copy of the Colt drawings, I found it was totally within specs! In addition, the assembled parts were all correctly done. I can highly recommend this bolt!!!!!
