Deutsche Versuchs- und Prüfanstalt für Jagd- und Sportwaffen

The German Experimental and Test Institute for Hunting and Sporting Firearms (founded 26 November 1888) (German Deutsche Versuchs- und Prüfanstalt für Jagd- und Sportwaffen e.V.), usually shortened DEVA, is a German manufacturer's association whose purpose is to provide independent advice and testing for firearms and ammunition. DEVA conducts its work independently, and is co-owned by most German firearm manufacturers, such as Blaser, Heckler & Koch, Heym, Mauser, Merkel, Sauer, etc.

Source: Wikipedia — Deutsche Versuchs- und Prüfanstalt für Jagd- und Sportwaffen (CC BY-SA 4.0)