Miquelet lock
Miquelet lock is a modern term used by collectors and curators for a type of firing mechanism used in muskets and pistols. It is a distinctive form of snaplock, originally as a flint-against-steel ignition form, once prevalent in the Spanish, Portuguese, and Ottoman empires, Italy, Greece, Russia, Ukraine, North Africa, and the Balkans from the late 16th to the mid-19th century.