The American Civil War manufactured quite a few this sort of weapons, ranging from so-termed “volley” guns that sprayed a variety of rifle bullets suddenly like a shotgun, to multishot, semi-automatic weapons much like the Agar machine gun, which was nicknamed the “coffee grinder” to the way it fed its https://machguns.com/product/lot-1448-dlo-1919a4-browning-class-iii-nfa-fully-transferable/