.40 S&W. 3.9" barrel length. SN: SP0072721. Black Nitron finish with polished upper barrel set in a black synthetic frame with black synthetic sigpro grips. Short-recoil operated DA/SA autoloading pistol featuring two-dot sights and fed by detachable double stack magazines. Item shows standard make and model markings overall with the left frame marked Frame made in Switzerland. Item comes in a blue synthetic hard case containing three magazines, .357 Sig caliber barrel, and the owner's manual.