Faxon 458 SOCOM 10.5" Gunner Big Bore Barrel

Faxon 458 SOCOM 10.5″ Gunner Big Bore Barrel

The Faxon 458 SOCOM 10.5″ Gunner Big Bore Barrel is purpose-built for shooters who demand top-tier performance from a compact large-bore platform. Constructed from 4150 Chrome Moly Vanadium (CMV) steel and treated with a QPQ Nitride finish, this barrel delivers exceptional durability, corrosion resistance, and reliability under extreme conditions. The M4 feed ramp extension enhances feeding reliability, making it a dependable option for duty use, hunting, or range training.

Engineered and manufactured entirely in-house from premium bar-stock, each Faxon 458 SOCOM barrel is held to strict quality standards. Every unit undergoes a full suite of inspections, including magnetic particle inspection (MPI) and headspace verification with custom hardened gauges. This ensures the highest levels of safety, performance, and long-term consistency with each round fired.

Optimized with a Pistol-length gas system, this 10.5″ barrel offers dependable cycling across a wide range of ammunition types. Whether you’re running suppressed or unsuppressed, the gas system configuration balances performance with recoil control. The barrel also features a 0.875″ gas block journal for compatibility with heavy-duty gas blocks suitable for the powerful 458 SOCOM cartridge.

Just what is the Gunner profile?

The Gunner profile represents a performance-driven hybrid design that merges the durability of the Government profile at the chamber end with the lightweight handling of a pencil profile at the front. This taper-forward configuration reduces front-end weight to promote faster target transitions and better maneuverability while retaining material at the rear to maintain rigidity, heat resistance, and accuracy. It’s an ideal profile for users who demand rugged performance without the bulk of traditional heavy barrels.

• Caliber: 458 SOCOM
• Barrel Length: 10.5″
• Profile: Gunner
• Gas System: Pistol Length
• Gas Block Journal: 0.875″
• Material: 4150 CMV Steel
• Finish: QPQ Nitride
• Feed Ramps: M4 Extension