Heckler & Koch SR9
Heckler & Koch SR9 is a sniper rifle or weapon model.
In detail
It is associated with West Germany and Germany. The record gives 1990 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
“Heckler & Koch SR9”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q1456500: Heckler & Koch SR9
Consult the source