MPN: FAX-365B910N-FSOQ-N / FAX-365B910N-FSOQ-T


  • Conventionally rifled to allow a wider range of ammunition to be used, including cast lead
  • Made from stress relieved 416-R stainless steel for durability, longevity, and accuracy
  • Muzzle device ready - 1/2-28 TPI (Threaded Models)
  • Better-than-factory tolerances ensure a consistent, tighter lockup than OEM
  • Drop into factory-spec slides with no gunsmithing required
  • 11-degree target crown to ensure superior accuracy
  • Polished feed ramp
  • Fully supported chamber
  • Advance coating increase lubricity, barrel life, and resistance to surface wear
  • Finish that matches your style - available in Black Nitride, Chameleon PVD (Rainbow), and Titanium Nitride (Gold)


  • Caliber: 9mm Luger
  • Length:
    • Threaded: 3.58"
    • Non-Threaded: 2.96"
  • Profile: Straight Fluted
  • Twist Rate: 1:10 Twist
  • Material: 416R Stainless Steel
  • Muzzle Thread Pattern: 1/2"-28 (Threaded Models)
  • Barrel Diameter: 0.531"
  • Bore Finish: Salt Bath Nitride
  • Outside Finish: Black Nitride, Chameleon PVD (Rainbow), or Titanium Nitride (Gold)
  • Weight:
    • Threaded: 2.65 oz.
    • Non-Threaded: 2.15 oz.



  • Sig Sauer P365, P365 SAS, and P365X, XMACRO Comp, and Spectre Comp version with 3.1" barrel ONLY


*Will NOT fit the XMacro Tacops versions (3.7" barrels), P365XL 3.7", P365XL Spectre 3.7", or the .380ACP P365



  • 1x Faxon Fluted Match Barrel for Sig P365
  • 1x Thread Protector (Threaded Models Only)


The Faxon fluted match barrel for Sig P365 9mm Sig handguns is designed to provide match-grade accuracy with a wide array of ammunition. Faxon manufactures the barrels right in their own factory to exact specifications. As a result, the Faxon Sig P365 barrels produce lockups tighter than OEM barrels and are available in both thread and non-threaded versions.

Enhanced Performance

The Sig P365 barrel is designed to provide match-grade accuracy and is cut with conventional 1:10 twist rifling to fire a wide range of 9mm Luger ammunition, including cast-lead bullets. The Faxon barrels are manufactured to tighter than OEM tolerances to ensure consistent tighter lockups over OEM barrels. The feed ramp is polished to ensure consistently smooth ammo feeding, and the 11-degree target crown is designed to produce superior accuracy.

Quality Construction

The Sig P365 barrel is machined from stress relieved 416-R stainless steel for improved accuracy and durability. An advanced salt bath nitride coating reduces wear and increases barrel life with exterior finishes of black nitride, chameleon PVD, or titanium nitride gold to suit your style. Threaded barrels with a 1/2-28 TPI weigh in at only 2.65 ounces, and the non-threaded version weighs just 2.15 ounces.

Easy Installation

Both the threaded and non-threaded Sig P365 barrel versions are drop-in ready with no gunsmithing required, and the threaded barrel version comes with a thread protector.

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