Description
MPI Nickel Boron AR-15 5.56 Bolt Carrier Group (BCG)
Features:
- .223/5.56 NATO
- Nickel boron finish
- M16 cut
- 9310 steel carrier
- Carpenter 158 steel bolt
- 4140 steel extractor
- MIL-SPEC O-ring
- MIL-SPEC gas rings
- 4140 steel cam pin
- 8740 steel firing pin with hard chrome finish
- Magnetic particle inspected
- Proudly made in the U.S.A.
Only 200 of these are being made available at this price!
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