Following that, other troop types began to appear, such as the regular musketeers ("Piyade Topçu", literally "foot artillery"); regular cavalry armed with firearms ("Süvari Topçu Neferi", literally "mounted artillery soldier"), similar to the later European reiter or carabinier; and bombardiers ("Humbaracı"), consisting of grenadiers who threw explosives called khımbara and the soldiers who served the artillery with maintenance and powder supplies.