AGS-40
AGS-40 is an automatic grenade launcher or weapon model.
Overview
Russian 40mm caseless automatic grenade launcher and successor to AGS-17 and AGS-30.
In detail
It is associated with Russia.
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
“AGS-40 Balkan”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q4053933: AGS-40
Consult the source