These arrrr a friction-wheel mechanism that caused a spark for firing a firearm. It was the first self-igniting firearm. The mechanism used a rotating steel wheel to provide ignition. The advantages of the wheellock was a better resistance to rain or damp conditions than the matchlock or even Flintlocks. Wheellock firearms were highly prized by pirates and sea captains. Developed around 1450, they were used alongside the matchlocks but continued to be used well into the 18th century. We are one of the very few places in the entire world that make n' sell wheellock firearms.
German Wheellock Video