Faxon Firearms Duty Series 9mm Luger Sig P365 Non-Threaded Pistol Barrel 3.1in 1-10 Twist Black. These barrels are then given a black Nitride or PVD coating to increase lubricity barrel life and resistance to surface wear. All barrels are conventionally rifled to allow a wider range of ammunition to be used including cast lead. The barrels drop into factory-spec slides with no gunsmithing required. Better-than-factory tolerances ensure a consistent tighter lockup than OEM. Specifications for Faxon Firearms Duty Series 9mm Luger Sig P365 Non-Threaded Pistol Barrel: Manufacturer: Faxon Firearms Color: Black Finish: Nitride Fabric/Material: 416R Stainless Steel Caliber: 9mm Luger Gun Make: SIG Sauer Gun Model: SIG Sauer P365 Barrel Length: 3.1 in Barrel Material: 4150 CMV Steel Barrel Twist Rate: 1-10 Flutes: No Weight: 0.13 lb Condition: New Package Contents: Faxon Firearms Duty Series 9mm Luger Sig P365 Non-Threaded Pistol Barrel What firearm models does the manufacturer say Faxon Firearms Duty Series 9mm Luger Sig P365 Non-Threaded Pistol Barrel is compatible with? The manufacturer says that Faxon Firearms Duty Series 9mm Luger Sig P365 Non-Threaded Pistol Barrel is compatible with SIG Sauer P365Faxon Firearms 365A910NFNOQ-N: Duty Series 9mm Luger Sig P365 Non-Threaded Pistol Barrel 3.1in 1-10 Twist Black