Faxon Firearms 5.56 9310 Bolt - Nitride

SKU# 2316 | by Faxon Firearms
  |  
Save 6%
$54.99
$51.95
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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 superiorcorrosion resistance compared to typical chrome and phosphated 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. Extractors are S7 Tool Steel. From there, the extractor is sprung using the spring o-ring, and silicone insert.

When ordered with a barrel, Faxon personally checks and guarantees safe headspacing. If ordered through the barrel webpage itself, Faxon offers a full matching service with unique laser engraving on both barrel and bolt.

Detailed Specifications:

Bolt:

  • 9310 Tool Steel Construction (Stronger than C158)
  • 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
  • QPQ - Salt Bath Nitrided 

Extractor:

  • S7 Tool Steel Construction
  • Fully Heat Treated
  • Shot Peened Per MIL-SPEC
  • QPQ - Salt Bath Nitrided

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