AR15/M16 - 5.56 / 9310 Bolt Carrier Group Nitride QPQ
Prime Weaponry
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
- 5.56 / 223
- 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
