Bolt Carrier Group Features:
- True Mil-Spec Bolt Carrier Group
- Material: Case Hardened 8620 Steel
- Finish: Black Nitride
- Gas Key: 4130 Steel attached with Grade 8 hardware and properly staked
- Cam Pin: Hardened 4340 cam pin
- Firing Pin: Mil Spec firing pin made of 8740 steel, center-less ground and Hard Chromed
- Bolt Assembly: The Bolt is Mil Spec dimension and external surfaces are CNC ground after heat treat for a precision fit
- Bolt Material: Case Hardened 9310 Steel.
- Finish: All Bolt components Shot Peened and Black Nitride (except extractor)
- Extractor: 4340 Steel , Manganese Phosphate coated
- Mil Spec Extractor Spring and O-Ring Combination
- MPI: Magnetic Particle Inspected
- 100% Made and Assembled in the USA
- Bolt: 9310 material, shot peened, MPI tested and hard engraved
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