W+F Bern Swiss K11 - sn 127xxx
The Karabiner Model 1911 (K11) is the shorter, lighter, carbine model of the Swiss 1911 rifle. It is a magazine fed, straight pull, bolt action rifle chambered in 7.5x55mm Swiss Gewehrpatrone 1911 (GP11). Though the 1911 rifle ceased production in 1919, the K11 was produced through 1933 as the Swiss military realized the benefit of outfitting their service members with shorter, lighter, carbines.