I am a reenactor who uses rifles in a display to tell about WWII. Amongst the display is my U.S. Rifle M1917. So far as I can tell, the Chemical Corps (manning 4.2" mortars) only U.S. Army troops that were still issued this weapon in 1941. I think pre Pearl Harbor, some .30 cal.versions were sent to the Brits to repel German invasion. After Pearl, some were handed out to the California State Guard for a similar purpose on the West Coast. After Operation Torch I imagine most troops armed with this weapon ditched it ASAP for an M1 carbine.
Does anyone know of any other uses of this weapon in WWII? Did the Phillipine army use it? Was it given to Chinese troops? Would Japanese soldiers used captured M1917's? Thanks!