I am pulling together some info on the Destroyers, and will post it here in a day or two. Basically, the Destroyer was designed as a short companion carbine to the 9mm Largo pistols issued to the Spanish Police. They were manufactured in limited numbers from the early 1950s to late 1960s, when the Spanish Police went over to issue submachine guns. They needed some fire power to fight them Basques! During this period of time, the Destroyers went through a few minor design changes. I need to get into my gunroom to chart out the design changes over this period of time, then I will list it here. Some of the changes were they went from an early straight stock to a pistol grip version stock, and the magazine wells went from a one-screw to a two-screw construction.
Crusty Cruffler of Fine Spanish Pistols - Eibar Rules!