The CZ Scorpion EVO 3 is a 9mm firearm platform manufactured by Česká zbrojovka Uherský Brod with a variant S1 available as a pistol, a carbine, or a short-barreled rifle, and a select-fire submachine gun variant A1. The EVO 3 designation denotes that the firearm is a third generation of CZ's line of small submachine guns started by the Škorpion vz. 61, which is mechanically unrelated.