Best price
$79.99at Brownells
checked Sep 30, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells | $79.99checked Sep 30, 2026 | Check store | Buy at Brownells |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
About this part
The M16 Bolt Carrier Group 5.56 Mpi/HPT 9310 Nitride is an accessory from Prime Weaponry. One store lists it, Brownells at $79.99.
Specifications
- Manufacturer
- Prime Weaponry
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
From the manufacturer
Carrier made with 8620 Steel and bolt made from 9310 Vac-Arc Premium Carburizing Steel which has a high core hardness and high fatigue strength unlike standard Hot/cold rolled 9310 steels. The nitride coating is the strongest plate available, it's the same protective finish that's used in gun barrels and CNC tool protection. If you're looking for a bolt carrier that's going to hold up against the roughest conditions, then this bolt carrier group is the one for you.
- AR15 and M16 Compatible
- 8620 Steel Carrier Nitride Coated
- 9310 Vac-Arc Steel Bolt Nitride Coated
- 4340 Steel Cam Pin Nitride Coated
- 4140 Steel Gas Key Nitride Coated
- Tool Steel Extractor Nitride Coated
- Shot Peened
- MPI (Magnetic Particle Inspected)
- HPT (High Pressure Tested)
- Gas key staked to Mil-Spec Standards
- Grade 8 Hardened Fasteners
- Extractor Insert with upgraded Crane O-Ring
- Power Spring Kit
- Bolt engraved with MPI/9310
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