The Demro TAC-1 is a semi-automatic carbine chambered in either .45 ACP or 9×19mm Parabellum. The TAC-1 is the reintroduction of the Fox Carbine to the law enforcement market after a fallout between Gerry Fox, the inventor, and Dean Machine Inc. of Manchester, CT. Although it is visually similar to the Thompson submachine gun the operation and design is quite different. The design is a closer cousin to the Russian PPSh-41.