Faxon 9310 .458 SOCOM/.450 Bushmaster Nitride - Bolt

Manufactured by Faxon Firearms
SKU: FF458BCNITRIDE
MPN: FF458BCNITRIDE
Manufactured by Faxon Firearms
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$80.00

In Stock

Non-FFL orders placed before 3:00pm CST will ship same business day. Non-FFL orders placed after 3:00pm CST will be shipped the next business day. FFL orders will ship within 3 business days once transfer details are provided.

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Details

Details

Run big-bore cartridges through your AR-15 with a bolt built to handle the pressure. The Faxon 9310 .458 SOCOM/.450 Bushmaster Bolt delivers MPI-tested 9310 tool steel with a salt bath nitride finish for reliable cycling and extended service life in demanding large-caliber builds.

The Faxon 9310 .458 SOCOM/.450 Bushmaster Bolt is a premium AR-15 replacement bolt designed for dependable big-bore performance in .458 SOCOM and .450 Bushmaster chambered rifles.

You get a bolt machined from 9310 tool steel that is fully heat-treated, shot-peened, and Magnetic Particle Inspected to help ensure material integrity before it ships. The salt bath nitride finish increases surface hardness, reduces friction, and provides corrosion resistance that outperforms standard phosphate coatings. Chamfered bolt lugs support smooth feeding and reliable function, even under the heavy bolt thrust loads that big-bore cartridges generate.

  • Type: AR-15 Replacement Bolt (.125 Bolt Face)
  • Caliber: .458 SOCOM, .450 Bushmaster
  • Bolt Material: 9310 Tool Steel
  • Bolt Finish: Salt Bath Nitride
  • Heat Treatment: Full MIL-SPEC
  • Shot Peened: Yes (MIL-SPEC)
  • MPI Tested: Yes
  • Bolt Lugs: Chamfered
  • Extractor Material: S7 Tool Steel (Heat Treated, Shot Peened per MIL-SPEC)
  • Platform: AR-15

Compatible with AR-15 platform rifles chambered in .458 SOCOM and .450 Bushmaster using a .125 bolt face depth specification. Confirm your barrel's required bolt type and headspace before ordering. This is a bolt only — carrier not included.

9310 tool steel provides excellent toughness and fatigue resistance under the high-pressure cycling of big-bore cartridges. Salt bath nitride finish increases surface hardness and corrosion resistance while reducing friction for smoother operation and easier cleaning. S7 tool steel extractor is heat-treated and shot-peened per MIL-SPEC for consistent extraction.

Ideal for .458 SOCOM and .450 Bushmaster AR-15 builds, bolt replacement on hard-running big-bore uppers, and shooters who want an MPI-tested, nitride-finished bolt for their large-caliber platform.

Faxon Firearms is known for precision-machined AR-15 components engineered for accuracy and reliability. Made in the U.S.A.

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Specifications

BrandFaxon Firearms
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.

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