Faxon Firearms .458 SOCOM Gunner Big Bore

Faxon Firearms .458 SOCOM Gunner Big Bore

Introducing Faxon’s first offering in the big bore AR15 market! Available in 458 Socom or 450 Bushmaster, Faxon Big Bore barrels are manufactured from certified 4150 mil-spec bar stock steel. The Faxon Big Bore barrels are magnetic particle inspected (MPI) and nitride coated for added durability and longevity.

Barrel Material: 4150 CMV
Barrel Type: Button Rifled
Barrel Caliber: 458 Socom
Barrel Twist: 1:14
Barrel: 10.5” Pistol , 16” Carbine 1.72 lbs
Barrel Profile:  Gunner Big Bore
Inside Finish: Salt Bath Nitride
Outside Finish: Salt Bath Nitride
Muzzle Thread: 11/16×24 TPI
Gas Block Diameter: .875″
Gas Block Journal Length: 1.1″
Barrel Extension: Big Bore barrel extension
Magnetic Particle Inspected!
Polished 11-degree Target Crow