The vz. 58 (or Sa vz. 58) is a 7.62×39mm 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 Sa 24 and Sa 26 submachine guns. While externally the vz. 58 resembles the Soviet AK-47, it is a different design based on a short-stroke gas piston. It shares no parts with Kalashnikov rifles, including the magazine.