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Features
Mil-Spec Bolt Carrier Group
- Material: Case Hardened 8620 Steel
- Finish: Nickel Boron
- Gas Key: 4130 steel attached with Grade 8 hardware and properly staked into a milled "valley" to ensure proper positioning
- Cam Pin: Hardened 4340 steel
- Firing Pin: Mil Spec firing pin made of 8740 steel, center-less ground and Hard Chrome coated
Bolt Assembly
- Bolt: Case Hardened 9310 SAAMI dimensions (Type II .136" Head Spacing) with external surfaces ground after heat treat for precision
- Extractor: 4320 Steel with Mil-spec extractor spring and 0-ring combination
- All components: Shot Peened and Nickel Boron coated
- MPI: Magnetic Particle Inspected
- HPT: High Pressure Test
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