A firing pin or striker is part of the firing mechanism used in a firearm or explosive device e.g. an M14 landmine or bomb fuze. Firing pins may take many forms, though the types used in fuzes for single-use devices (such as landmines, artillery shells, cluster munitions and grenades etc.) generally have a sharpened point. In contrast, firing pins used in firearms usually have a small, rounded portion designed to strike the primer of a cartridge, detonating the priming compound, which then ignites the propellant (inside) or fires the detonator and booster.
Typically, firing pins or strikers are made from steel, aluminum alloy or titanium. However, for specialist applications such as zero metal mines, non-metallic materials are used e.g. glass ceramic.