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
good quality
works fine. should last long
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
USexcellent
It served perfectly
USVery nice!!
Nice quality, and finish…. I only buy MPI & HPT Bolt carrier parts. Can’t wait to shoot with this bolt Assy.
USCheap price and seems to work fine
200 rounds with it, it seems to work fine and be cheaper than the other options.
