The vz. 58 (model 58) is a 7.62mm assault rifle designed and manufactured in Czechoslovakia and accepted into service in the late 1950s as the 7,62 mm samopal vzor 58 ("7.62mm submachine gun model 1958"), replacing the vz. 52 self-loading rifle and the 7.62×25mm Tokarev vz. 24 and vz. 26 submachine guns. The vz. 58 externally resembles the Soviet AK-47 but is internally a substantially different design based on a short-stroke gas piston, which shares absolutely no parts with the Kalashnikov design - including the magazines.