Sig Sauer P320 Compact Barrel Features The Sig Sauer P320 Compact Barrel is a factory-spec 3.90 replacement barrel chambered in .40 S&W engineered specifically for the P320 and P250 Compact platforms for a precise drop-in fit without modification or gunsmithing. Installation is straightforward and tool-free requiring only that the firearm be unloaded the slide removed from the receiver and grip module and the existing barrel slid out before dropping in the replacement. As a factory replacement unit built to the same tolerances as the barrel shipped with the pistol this barrel delivers the fit function and reliability P320 and P250 Compact owners expect. The P320 Compact .40 S&W factory replacement barrel features a black DLC finish that provides superior surface hardness and corrosion resistance for long-term durability through sustained carry and range use. Whether replacing a worn barrel or converting a P320 or P250 Compact to .40 S&W this is the correct factory-spec solution for Compact platform owners. Note that this barrel does not include a loaded chamber indicator. Sig Sauer P320 Compact Barrel Specifications Manufacturer: Sig Sauer Model: P320 Compact Barrel Caliber: .40 S&W Barrel Length: 3.90 Barrel Finish: Black DLC Color: Black Compatible With: Sig P320 Compact / P250 Compact Loaded Chamber Indicator: No