Faxon Match Series 9mm Fluted Barrel for SIG P365 XL

The Faxon Match Series Barrel (Faxon part no. 365B910NXSOQ-T) is a 4.3 inch fluted, threaded replacement barrel built specifically for the SIG Sauer P365 XL, chambered in 9mm Luger. Machined in-house at Faxon’s Greater Cincinnati, Ohio facility from 416-R stainless steel and finished in black nitride, this barrel pairs a straight-fluted profile with a 1:10 inch twist rate and a target crown for tighter groups and faster follow-up shots. The threaded muzzle accepts standard 9mm muzzle devices, including Faxon’s own EXOS-525 pistol compensator, and better-than-factory tolerances deliver a tighter, more consistent lockup than the stock barrel. Every Faxon barrel drops straight into a factory-spec P365 XL slide with no gunsmithing required and is backed by Faxon’s Lifetime Guarantee. For P365 XL owners chasing better accuracy or a threaded option for a compensator, this barrel from Faxon Firearms is a proven upgrade.

Key Specifications

• Chambered in 9mm Luger.
• Measures 4.3 inches, a direct-fit replacement length for the P365 XL.
• Purpose-built for the SIG Sauer P365 XL pistol.
• Cut with a 1:10 inch twist rate.
• Machined from 416-R stainless steel for accuracy and corrosion resistance.
• Finished in black nitride for durability and added lubricity.
• Features a straight-fluted profile to cut weight and improve cooling.
• Cut with a target crown for consistent accuracy at the muzzle.
• Threaded for standard muzzle devices, including Faxon’s EXOS-525 compensator.
• Conventionally rifled for compatibility with cast lead ammunition, unlike some polygonal factory barrels.

Frequently Asked Questions

What pistol does this barrel fit? The SIG Sauer P365 XL, chambered in 9mm Luger.

Does it require gunsmithing to install? No, it drops into a factory-spec P365 XL slide with no fitting required.

Can I run cast lead ammunition through it? Yes, it is conventionally rifled, unlike some factory polygonal-rifled barrels that are not rated for cast lead.

Buy the Faxon Match Series 9mm Barrel for SIG P365 XL

Tighten up your P365 XL’s accuracy with a precision, drop-in barrel. Order the Faxon Match Series Barrel from our handgun barrels selection at our Lubbock, Texas gun shop, with fast shipping to your door.