Faxon 458 SOCOM 10.5″ Gunner Big Bore Barrel


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Faxon 458 SOCOM 10.5″ Gunner Big Bore Barrel

Faxon 458 SOCOM Big Bore Gunner Barrel.

Manufactured 100% in-house from gun-barrel-quality bar-stock, the Faxon 458 SOCOM 10.5″ Gunner Big Bore barrel starts with 4150 Chrome Moly Vanadium Mil-Spec steel. From there, the barrel goes through a battery of tests at each operation until finished in Nitride and final inspected. This beautiful 458 SOCOM 10.5″ Gunner Big Bore barrel is individually checked for headspace by precision custom hardened gauges.

Just what is the Gunner profile?

The Gunner profile is a blend of the best performing profiles of all time, Government and Pencil.  The gunner profile mimics the well-known government taper, and from the gas block forward, Faxon’s innovation takes over and the Gunner moves to their famed pencil front end.

Removing weight from the front of the barrel ensures maximum versatility and keeps material to the rear to maximize heat resistance and mitigate whip.

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Product Specifications

  • Manufacturer: Faxon Firearms
  • Part #: 15A45814P10NGQ
  • Barrel Material: 4150 CMV
  • Barrel Type: Button Rifled
  • Caliber: 458 SOCOM
  • Twist: 1:14
  • Length: 10.5”
  • Profile: Gunner Big Bore
  • Gas System: Pistol
  • Inside Finish: QPQ Nitride
  • Outside Finish: QPQ Nitride
  • Muzzle Thread: 11/16-24 TPI (Threads Per Inch)
  • Gas Block Diameter: .875″
  • Journal Length: 1.1”
  • Barrel Extension: Big Bore Barrel Extension
  • Weight: 1.72 lbs
  • Magnetic Particle Inspected!
  • 11-degree Target Crown
  • MSRP: $255.00

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Weight 27 oz
Dimensions 11.5 × 2 × 2 in
Barrel Finish

QPQ Nitride

Barrel Length




Gas Block Diameter


Gas System





4150 Chrome Moly Vanadium

Muzzle Thread


Part Type

Barrel, Upper Receiver Parts




Big Gunner, Big Bore

Twist Rate


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