The Hotchkiss "type Universal" is a submachine gun manufactured in France after World War II.
[1] It was originally designed as a semi-automatic police carbine but a full automatic version was made.
Its most unique feature however is that it folds up into a very compact package and unfolds easily and relatively quickly.
The semi-automatic version was exported in very limited numbers to many countries.
This article relating to submachine guns is a stub.