Originally developed in 1917 and fielded in 1918, the Model 1917, also known as the 1917 RSC (Ribeyrolles, Sutter & Chauchat, after the designers) was the first semi-automatic rifle adopted by France. Brought into service late in World War I, a number of improvements were made based on soldier feedback, including simplification of the gas system and introduction of a hold-open device, which can be seen on this example. The 1917 and updated 1918 were phased out in the mid-20s after seeing service in the Rif War, with the majority being stripped of their gas hardware and converted to straight-pull repeaters for issue to colonial forces, often in North Africa. Additionally, a number found their way into the hands of the German Volksturm as last-ditch weapons during World War II. Blade front and folding ladder rear sight, with a "MA T1918" dated barrel and a "MA T Mle1917" marked receiver. Fitted with a straight wrist stock and a brown leather sling.