Faxon 9310 .308 AR10 bolt with firing pin .125 nitride – DPMS Gen 1 compatible bolt assembly.

FAXON 9310 .308 WIN/6.5 CREEDMOOR/8.6 BLK BOLT + FIRING PIN - .125 - NITRIDE

Faxon
SKU:
FF308BCNITRIDE
|
UPC:
816341020900
Availability:
Usually ships within 2 business days when available.
$117.00
(5 reviews)
Current Stock:
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Description

Faxon 9310 .308 / 6.5 Creedmoor / 8.6 BLK Bolt + Firing Pin (.125) – Nitride

Category: Rifle Parts
Platform: AR10
Series: Bolts
Caliber/Cartridge: .308 Win, 6.5 Creedmoor, 8.6 BLK
SKU: FF308BCNITRIDE  |  UPC: 816341020900
MSRP: $117.00

The Faxon 9310 .308 / 6.5 Creedmoor / 8.6 BLK Bolt + Firing Pin (.125) – Nitride is a premium AR10/DPMS-pattern replacement bolt engineered for reliability, durability, and consistent extraction. Seeing “MIL-SPEC” as just the starting point, Faxon pairs proven materials and inspection with a hard-wearing finish to deliver a bolt assembly ready for serious use.

Machined from 9310 tool steel, each bolt is fully heat treated, shot peened, and Magnetic Particle Inspected (MPI) to help ensure the material is sound and free from defects. The bolt receives a salt bath nitride treatment to increase surface hardness, decrease resistance, and provide superior corrosion resistance compared to chrome or phosphate finishes. Bolt lugs are chamfered to promote reliable cycling—even with higher-pressure loads and fast actions.

The extractor is manufactured from S7 tool steel, fully heat treated, and shot peened. The spring setup uses .308-spec springs and a dual O-ring arrangement to support consistent extraction. This bolt is DPMS Gen 1 compatible and ships with a firing pin included.

Detailed Specifications

Bolt

  • 9310 Tool Steel Construction
  • Full MIL-SPEC Heat Treatment
  • Shot Peened to MIL-SPEC
  • Magnetic Particle Inspection (MPI)
  • Back of lugs chamfered for reliability
  • .308-spec springs & dual O-ring installed
  • Salt Bath Nitrided
  • DPMS Gen 1 compatible
  • Firing pin included

Extractor

  • S7 Tool Steel Construction
  • Fully Heat Treated
  • Shot Peened per MIL-SPEC

Frequently Asked Questions

What cartridges is this bolt compatible with?

This bolt is designed for .308 Win, 6.5 Creedmoor, and 8.6 BLK AR10/DPMS-pattern builds that use a .125 bolt face spec. Always confirm compatibility with your barrel and verify headspace.

Is this DPMS compatible?

Yes. This bolt is listed as DPMS Gen 1 compatible.

Is the firing pin included?

Yes. This product includes the bolt + firing pin.

Is this bolt MPI tested?

Yes. Faxon bolts are MPI tested to help verify material integrity and quality.

Why choose nitride over phosphate?

Salt bath nitride increases surface hardness and corrosion resistance while reducing friction—often improving smoothness and easing cleaning.

Warranty

Faxon Firearms products are backed by our Lifetime Guarantee to the original purchaser against defects in materials and workmanship. For full terms, exclusions, and RMA instructions, visit: Faxon Warranty Policy.

Warranty

Faxon Lifetime Guarantee. Covers manufacturing and material defects to the original purchaser. Excludes damage from misuse, neglect, non-standard ammunition, or modifications. Register your product at faxonfirearms.com/product-registration to expedite service. For purchases through dealers or distributors, warranty repairs are handled directly by Faxon Firearms; refunds must be processed through the selling entity. Full policy: faxonfirearms.com/warranty-privacy-terms/

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Reviews

  • 5
    Faxon 9310 .308/6.5 creedmoor/8.6 BLK BOLT + FIRING PIN

    Posted by Kenneth E. Smith on May 25th 2026

    Arrived in a timely manner, perfect fit and finish and operates flawlessly...

  • 4
    Extractor is MIM S7 tools steel, NOT Billet S7 Tool steel!

    Posted by Joe A on May 31st 2025

    Extractor broke after just 20 rounds. I give 4 stars as they are sending me a replacement and explained S7 tool steel does not necessarily mean traditional billet machined. There is powdered S7 that is MIM. And that is what these are.

  • 4
    AR 10 BOLT

    Posted by John on Sep 10th 2020

    Parts delivered on time and quality machining.

  • 5
    .308 Bolt

    Posted by Ray W on Feb 22nd 2018

    The bolt is top quality. I bought a barrel with the head spaced bolt. The only thing that I noticed is that the firing pin hole is slightly larger than my Aero Precision bolt that it replaced. The larger orifice caused some primer cratering, but that’s really not a problem.

  • 5
    Looks/fits good

    Posted by Robert on Aug 3rd 2017

    Looks and feels like great quality