The Standardmodell rifle (also known as Mauser Model 1924 or Mauser Model 1933) is a bolt-action rifle chambered for the 7.92×57mm Mauser cartridge that was developed in 1924 but entered full-scale production in 1933. Officially designed for export and German security guards, it was used by the paramilitary Sturmabteilung (SA) and Schutzstaffel (SS). Export variants were used in South America, Ethiopia, China and Iberian Peninsula. The carbine version of this rifle was almost identical with the Karabiner 98k that became the standard German service rifle during World War II.