In stock (can be backordered)
- NiBx Coated
- Individually MPI Tested
- 9310 MPI tested Bolt
- Carrier: 8620 Tool Steel-Heat Treated, Case Hardened
- Gas Key: Tool Steel-Attached using Grade 8 Hardened Fasteners, & Staked.
- Cam Pin: 4140 Steel
- Extractor:Tool steel-shot peened
Features a shot-peened bolt for increased surface strength and durability, and an extractor booster to ensure reliable cycling during rapid semi-auto or full-auto fire. Includes firing pin upgrade. Each assembly is magnetic particle inspection tested to ensure it’s free from imperfections that can lead to premature failures. Properly staked gas key prevents gas leakage that can lead to short stroking. Staked screws, parkerized exterior with hardened interior for bolt and cam pin.
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