The Škorpion vz. 61 is a Czechoslovak compact submachine gun designed in the early 1960s, initially chambered in .32 ACP (7.65×17mmSR Browning), while later variants are available in 9mm Makarov, 9mm Parabellum and .380 ACP. It features a wire top-folding stock and uses a standard 10/20-round magazine.
The Škorpion was originally intended (an served mostly) as a compact sidearm for tank crews and other vehicle crews. Even today, it is in active service in the Czech military (now issued mainly to guards) and in elite police squads.
This tag implicates submachine_gun (learn more).