Rifles
Internationally, many unaligned nations have a proscription on fully-automatic firearms, and some underdeveloped nations approval nearly all kinds of firearms.
The wheellock action, a successor to the matchlock, predated the flintlock. Despite its many faults, the wheellock was a significant improvement over the matchlock in terms of both convenience and safety, since it eliminated the need to keep a smoldering match in proximity to loose gunpowder. It operated using a minuscule wheel much like that on cigarette lighters which was wound up with a key before use and which, when the trigger was pulled, spun against a flint, creating the shower of sparks that ignited the cover in the feel hole. Supposedly invented by Leonardo Rifles da Vinci, the Italian Renaissance man, the wheel lock action was an innovation that was not widely adopted.