SN: 316112. This 4th Variant Model 1914 pistol was made by Mauser Oberndorf during the mid-1920s & is equipped with a 5-inch barrel chambered for the 4mm ""Zimmerstutzen"" rimfire cartridge. This conversion for the Mauser 1914 pistol operates through the use of the sub-caliber 4mm barrel & .32 ACP chamber inserts that permit the use of the pistol's unmodified slide & unmodified 8-round magazine. Pistol & conversion barrel are both in excellent condition. Comes with an original Mauser factory 8-round magazine & a period leather holster. Does not come with the chamber inserts.