Description
Nitrided M16 Bolt Carrier Group, made from 8620 steel, Bolt is made from 9310 steel MPI Tested. The 223 Bolt and Bolt Carrier Assembly comes complete with cam pin , firing pin and firing pin retainer.
Specifications and Features:
- 223 / 5.56 bolt assembly is compatible with .300BLK as well!
- Fully mil-spec construction
- Durable Nitride finish
- 9310 steel bolt is MPI tested
- 8620 steel full-shroud M16 style bolt carrier
- Properly staked gas key
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