Originally manufactured by GSG and imported by ATI, this 22 caliber semi-automatic was modified and registered by Tornado Technologies LLC of Hillsboro, Oregon, and bears their markings on top of the receiver. The item has been shortened to resemble a Heckler & Koch MP5 sub-machine gun, with a telescoping stock and the original matching numbered barrel shortened, threaded, and fitted with a thread protector that emulates the H&K "three lug" quick-mount arrangement. Hooded post front and 4-position drum rear sights, with "DE" and "AI" marked on the magazine well, textured forearm and pistol grip, and a checkered telescoping buttstock. With two extra magazines (one with GSG box), manual, small spare parts and maintenance tools, and an attachable receiver rail.