percussion hammer firing mechanism

percussion hammer firing mechanism

[pər′kəsh·ən ¦ham·ər ′fīr·iŋ ‚mek·ə‚niz·əm]
(ordnance)
Firing mechanism in which a hammer, actuated by a pull of a lanyard, strikes the firing pin and fires the weapon.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.