Walther MP
Walther MP is a submachine gun or firearm model.
In detail
It is associated with Germany and West Germany. The record gives 1963 as its date of establishment or first appearance.
Sources
Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.
reference work · Reputable secondary · Wikipedia
“Walther MP”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q1425849: Walther MP
Consult the source