Used from the end of World War One until the outbreak of the Vietnam War, this 19-pound monster ruled the field of automatics for over fifty years. This is also the weapon that Grandpa carried in service. These were issued to Staff Sergeants in WWII. I bet that anyone who didn't get this piece, wanted one. This rifle and the M-1 Thompson (the "Tommygun") also featured prominently in gangster movies of the 1930's and '40s. They were very popular guns.
(I picked one of these up before and it feels like it's made of solid lead! I still cannot believe my grandfather carried this when he was 25 or 26 years old being such a scrawny guy)
Watch a video of the history of this powerful mobile machinegun here: