#gunlock__firing_mechanism  the action that ignites the charge in a firearm
  supertype:  action_mechanism__action  the operating part that transmits power to a mechanism; "the piano had a very stiff action"
  part:  gunlock_hammer
  part of:  gun
  subtype:  flintlock  a gunlock that has flint embedded in the hammer; the flint makes a spark that ignites the charge
  subtype:  wheel_lock__wheellock  an obsolete gunlock using flint and a revolving wheel

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