SIG SAUER P365 Fuse 9mm Non-Threaded Pistol Barrel 4.3in LCI Titanium-Nitride Black. 3'' Barrel 9mm (Black Nitron) is a factory OEM replacement and upgrade component designed specifically for the P365 FUSE platform and Cal-X conversion kits. Precision machined to exact Sig Sauer tolerances this barrel delivers the reliability accuracy and consistent performance expected from OEM components. Built for 9mm performance the 4.3'' barrel features a durable Nitron black finish for enhanced corrosion resistance and long-term durability. It incorporates an integrated Loaded Chamber Indicator (LCI) providing a quick visual and tactile confirmation of a round in the chamber-adding an extra layer of safety without altering the pistols external profile. Engineered for seamless compatibility with P365 FUSE 4.3'' slides and Cal-X X-Change kits this non-threaded barrel is an ideal solution for replacing worn components refreshing your slide assembly or completing a caliber exchange build. Whether you're maintaining peak performance or building out your platform this OEM barrel ensures dependable function and consistent ballistics. Specifications for SIG SAUER P365 Fuse 9mm Non-Threaded Pistol Barrel: Manufacturer: SIG SAUER Color: Black Finish: Titanium Nitride Fabric/Material: 416R Stainless Steel Caliber: 9mm Luger Gun Make: SIG Sauer Gun Model: SIG Sauer P365-FUSE Barrel Length: 4.3 in Barrel Profile: Standard Barrel Material: 416R Stainless Steel Threads per Inch: Non Threaded Barrel Twist Rate: 1-10 RH Rifling Profile: Broach Cut Package Contents: SIG SAUER P365 Fuse 9mm Non-Threaded Pistol Barrel What firearm models does the manufacturer say SIG SAUER P365 Fuse 9mm Non-Threaded Pistol Barrel is compatible with? The manufacturer says that SIG SAUER P365 Fuse 9mm Non-Threaded Pistol Barrel is compatible with SIG Sauer P365-FUSESIG SAUER 8901749: P365 Fuse 9mm Non-Threaded Pistol Barrel 4.3in LCI Titanium-Nitride Black