The GSG-5 .22 caliber semi-auto rifle from American Tactical Imports is an exact replica of H&K MP 5 sub-machine gun aside from the caliber. Ergonomics and handling are identical to that of the MP 5 with an overall length of 33.5 and a weight of 6.6 pounds which makes it an ideal training tool for Law Enforcement, Military personnel or civilians. 22 long rifle offers an immense savings over 9mm/40/45 caliber ammunition allowing extensive range time with the GSG-5 at a minimal cost to the user.