Carl Gustafs Stads Gevärsfaktori ("Rifle Factory of Carl Gustaf's town") was founded in 1812 as a state arsenal. The name Carl Gustaf's town was a name used intermittently for the town Eskilstuna after king Karl X Gustav gave the town city privileges.
Between 1943 and 1991 the factory was run by a state agency named FFV, and the whole complex was often referred to as FFV-Carl Gustaf Hope this helps.
George Parris Manilla NSW