Which submachine gun built by Societe Luxembourgeoise SA in Luxembourg between 1954 and 1957 was capable of using magazines developed in Nazi Germany?
MP 40 The MP 40 ("Maschinenpistole 40") was a submachine gun chambered for the 9×19mm Parabellum cartridge. It was developed in Nazi Germany and used extensively by the Axis powers during the Second World War.
MCEM 3 submachine gun The MCEM 3 was a proposed collapsible 9mm submachine gun designed by the British in 1947. It had a detachable stock alongside the magazine and a Lee–Enfield type bayonet. However the MCEM 3 was not accepted and found no customers.