Sig Sauer P320 Threaded Barrel Features The Sig Sauer P320 Threaded Barrel is a factory-spec 4.30 replacement barrel chambered in 9mm compatible with the P320 XCOMPACT and Subcompact platforms with loaded chamber indicator slides as well as any P320 designed to accept a 3.6 9mm barrel for a precise drop-in fit without modification or gunsmithing. The 1/2x28 thread pitch is the industry standard for 9mm pistol barrels ensuring broad compatibility with a wide range of compensators and suppressors from major manufacturers. Specially heat-treated for toughness and durability this barrel delivers factory-level performance and longevity P320 owners expect. The P320 XCOMPACT 9mm factory threaded barrel features a black Nitron finish that provides superior corrosion resistance and surface hardness through sustained carry and range use. The included thread protector cap keeps muzzle threads protected when running without a suppressor or muzzle device. Whether adding suppressor capability to an existing P320 XCOMPACT or Subcompact or replacing a worn barrel this is the correct factory-spec solution. Sig Sauer P320 Threaded Barrel Specifications Manufacturer: Sig Sauer Model: P320 Threaded Barrel Caliber: 9mm Barrel Length: 4.30 Barrel Finish: Black Nitron Thread Pattern: 1/2x28 Color: Black Compatible With: P320 XCOMPACT / Subcompact with Loaded Chamber Indicator / Any P320 designed for 3.6 9mm barrel Includes: Thread Protector Cap