The Faxon Firearms Match Series Barrel (brand part number 320B910NFLOQ-T) is a 5.5-inch fluted, threaded barrel for the SIG P320, machined in-house from stress-relieved 416R stainless steel and chambered in 9mm Luger. Faxon finishes the barrel in a black nitride or PVD coating to increase lubricity, extend barrel life, and resist surface wear, and cuts a 1:10-inch conventional rifling twist that stabilizes a wide range of ammunition, including cast lead bullets. The barrel drops directly into factory-spec P320 slides with no gunsmithing required, and Faxon’s better-than-factory machining tolerances deliver a consistently tighter lockup than the OEM barrel.

Key Specifications

• Chambered in 9mm Luger.
• Measures 5.5 inches in barrel length.
• Machined from stress-relieved 416R stainless steel.
• Features a fluted profile for reduced weight.
• Cut with standard threading for a suppressor or muzzle device.
• Finished in a black nitride or PVD coating for added lubricity and wear resistance.
• Rifled with a 1:10-inch conventional twist rate.
• Fully compatible with cast lead bullets as well as jacketed ammunition.
• Direct drop-in fit for factory-spec P320 slides, no gunsmithing required.
• Delivers a tighter lockup than OEM thanks to better-than-factory tolerances.

Frequently Asked Questions

Is this barrel threaded? Yes, it’s cut with standard threading for a suppressor or muzzle device.

Will it drop into my factory slide? Yes, it drops directly into factory-spec P320 slides with no gunsmithing required.

Can I shoot cast lead bullets through it? Yes, the conventional rifling is compatible with cast lead as well as jacketed ammunition.

Buy the Faxon Firearms Match Series SIG P320 Fluted Barrel

Upgrade your P320 with a match-grade barrel that locks up tighter than OEM. Order it from our Faxon Firearms lineup, part of our handgun barrels selection, from our Lubbock, Texas gun shop as soon as it’s ready to ship.