One of the coolest character designs of the early G.I. Joe era was Destro. Destro, while often grouped with Cobra, was actually an independent arms dealer who sold weapons to Cobra but maintained his own independence and actually had his own army in the Iron Grenadiers. The vac-metal mask of the Destro figure really set it apart from other figures in the line and still to this day is one of the most visually striking action figures.
Destro came with a small pistol and a square backpack that opened up to reveal more guns inside (though sadly molded in and not removable). Destro also stood slightly taller than the other circa 1982-83 G.I. Joe figures.
I loved the figure as a kid. I don't remember the day I actually bought him but I do remember having him in my collection very early on so I probably bought him sometime in 1983.