AR-15 6.5 Grendel Type II Bolt Carrier Group
Features
- Heat-treated 8620 hardened steel carrier
- Magnetic-particle inspected 9310 steel bolt
- Shot-peened with correct gas-key torqueing and staking
- Extractor installation includes rubber insert and spring
- BCG finished with black-nitride coating
- Bolt face depth is .136"
- Includes bolt, bolt carrier, gas key, firing pin, firing pin retaining pin, and cam pin
