Product Description
.223/5.56 BOLT CARRIER GROUP NICKEL BORON BCG-N
- Machined from 8620 tool steel
- Forward assist serrations
- Shrouded firing pin
- Nickel boron coating inside and out
- Forged mil-spec gas key
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Nickel Boron BCG
Although I haven't switched it out for use yet, this thing scrams of quality and craftsmanship machine work.
Great deal for the moneys spent.