Ah, the Uzi 9mm submachine gun. Compact, reliable, and so deadly.
Designed for the Israeli Defense Forces, this weapon was designed to be easy to carry at all times. It was also intended to be easy to reload, using the principle that one hand will always find the other. And it was rugged, the Uzi was more than a match for the harsh desert terrain in which the IDF operated.
Sure, other 9mm submachine guns have come along. Many of them have been sexier, but this was the kind of full-auto weapon that could outlast the Apocalypse. It pays to have one in your Z-Day bunker's weapons rack.