Faxon 5.56 300 Blackout M16 Bolt Carrier Group Nitride AR15 BCG
Faxon 5.56 300 Blackout M16 Bolt Carrier Group Nitride AR15 BCG

Faxon 5.56 300 Blackout M16 Bolt Carrier Group Nitride AR15 BCG

Part Number:FF556BCGCNITRIDE
Your Price: $145.00
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Faxon 5.56 300 Blackout M16 Bolt Carrier Group Nitride AR15 BCG

We just can't help not accepting the status quo. Bolt carrier groups are available aplenty, but few could meet our exacting standards for performance and value. Seeing "MIL-SPEC" as just the starting point, we set out to ensure the best options are available for our demanding customers.

Improvements include using 9310 tool steel for the bolt, which is stronger and nitriding the assembly to increase surface hardness, decrease resistance, and have superior corrosion resistance compared to typical chrome and phosphasted bolt carrier groups. All bolts are fully MPI tested to ensure the material is sound and without defects. Bolt lugs are chamfered 45 degrees to ensure reliable action for even the highest pressure hand loads and fast lightweight actions.

Faxon Bolt Carrier Groups are Superfinished to reduce friction, increase smoothness of operation, and reduce fouling. Further, they are full-Auto rated and maintain the trip for full-auto fire control groups and new multi-stage trigger systems. Gas keys use grade 8 fasteners and are fully staked for a lifetime of service.

Detailed Specifications:

    9310 Tool Steel Bolt
    Full MIL-SPEC Heat Treatment
    Shot Peened to MIL-SPEC
    Magnetic Particle Inspection (MPI)
    Back of Lugs Chamfered for Reliability
    Spring, Insert, & "Crane" O-Ring Installed
    Salt Bath Nitrided Bolt & Carrier
    S7 Extractor
    Superfinished Carrier Body
    Full Auto Compatible
    Forward Assist Serrations

Note - Bolt carriers ordered and deployed with barrels not specifically checked by Faxon for headspacing MUST be checked to ensure safe and reliable function. Faxon recommends Pacific Tool & Gauge headspace kits for all measurements. For detailed instructions on headspacing, see our blog post for instructions. 

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