The K-9 is a submachine gun that externally resembles the TEC-9 pistol but is a completely different gun. Made from low cost polymers and stamped steel, it is a cheaper alternative to a MP5 or UMP-9. With a fire rate of 800 to 950 rpm and able to fire .380 ACP, 9x19mm Parabellum and 9x18mm Makarov interchangeably unlike most other weapons. Known by many people as a weapon associated with criminal organizations such as the Medellin Cartel. a semi-automatic version is available with a short barrel and does not have to meet barrel length regulations because it is classified as a handgun.