Rifle, Mauser KAR 98K, made 1937, S/42, #4581b The Karabiner 98 Kurz (Kar98k, K98, or K98k) is a bolt action rifle chambered for the 7.92×57mm Mauser cartridge that was adopted on 21 June 1935 as the standard service rifle by the German Wehrmacht. Although supplemented by semi- and fully automatic rifles during World War II, it remained the primary German service rifle until the end of the war in 1945. (ON THE 1991 FIREARMS LIST THE SERIAL NUMBER IS MARKED AS "45816", ON THE 1991 FIREARMS LIST, PARTS REMOVED FOR SECURITY