The M1879 Reichsrevolver, or Reichs-Commissions-Revolver Modell 1879 and 1883, were service revolvers used by the German Army from 1879 to 1908, when it was superseded by the Luger. The two versions of the revolver differ only in barrel length (The M1883 had a 5-inch barrel). Although the design was dated, the weapon was extremely robust, and they were still used through World War I. The M1879 is referred to as the "cavalry model" and the M1883 as the "officer's model," by collectors, which were not official designations.