M1908 Mondragon Semiauto Rifle
The M1908 Mondragon is presented as the first mass-produced semi-automatic combat rifle adopted by a military, designed by Manuel Mondragon and manufactured by SIG. It features a long-stroke gas piston system, a complex rotating bolt, and a gas cutoff for manual operation. While initially chambered in 7x57mm Mauser and intended for Mexico, reliability issues and political turmoil led to contract cancellation. Germany later acquired remaining rifles for aviation use.









