Description
Onyx Arms 5.56/.223/300bo Full Auto profile & rated complete bolt carrier group coated in DLC Bronze Color.
These are made by Tool Craft & laser engraved our logo on the side of the carrier.
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CARRIER SPECIFICATIONS
- Material: Domestic Aircraft Quality 8620 Steel
- Gas Key: 4130 Steel: Grade 8 Gas Key Screws (properly staked)
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BOLT SPECIFICATIONS
- Bolt Material: C158
- Extractor Material: 4140 Steel
- Mil-Spec O-Ring
- Mil-Spec Gas Rings (3)
- Cam Pin Material: 4140 Steel
- Firing Pin Material: Hard Chrome/Ground 8740
- Other: MPI Tested, Shot Peened
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