Description
BPM produced complete Nickel Boron Bolt Carrier Group
– Nickel Boron Carpenter 158 Steel alloy bolt per mil-spec
– Shot-peened per mil-spec
– Nickel Boron coated Full Auto style bolt carrier with Gas Key properly staked per Mil-Spec
– Nickel Boron Cam pin,
– Mil-spec firing pin and retainer.
Additional information
| Weight | 3.5 lbs |
|---|
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