- flintlock, firelock - a muzzle loader having a flintlock type of gunlock
--1 is a kind of muzzle loader
--1 has parts: flintlock - flintlock - a gunlock that has flint embedded in the hammer; the flint makes a spark that ignites the charge
--2 is a kind of gunlock, firing mechanism
--2 is a part of flintlock, firelock
--2 has part: gunflint