During the Cold War the Czechs made, and was used by the Secret Police, the CZ Skorpion .32 acp Machine Pistol. It was a vicious little sucker, very high cyclic rate of fire and very compact.
CZ has given the SCORPION name to a new pistol, rifle, and in other then the US, a select fire gun. For some reason the BATFE as approved shouldering and firing a Scorpion Pistol with a wrist brace - which makes for a convenient sized gun. As a pistol the brace makes a lot more sense. Throw a red dot or a low power (3X) scope on it and it's a fine little shooter!