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firing pin

noun, Ordnance
a plunger in the firing mechanism of a firearm or cannon that strikes the cartridge primer, igniting the propelling charge.
Origin of firing pin
1870-75 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for firing pin
  • In one prototype, the gun will not unlock its firing pin unless the owner is wearing a special magnetic ring.
  • The gun had a defective firing pin that left an unmistakable mark on the rim of each shell.
  • If a firing pin is replaced, redundant markings would transfer the markings to the cartridge.
  • It was similar in concept to needle-fire but did not require the long and easily damaged firing pin.
  • One that the manual was inadequate because it failed to warn the user not to let the firing pin rest against a live primer.
  • The resulting cavity was filled with a hinged breechblock that was fitted with a long firing pin.
  • Examination of firing pin impressions by scanning electron microscopy.
  • Manufacturing marks can also be distinguished by the fact that they often extend into a firing pin impression.
  • The safety is seen as working well and the firing pin clicks each time the trigger is pulled.
  • If the hole is too deep, the firing pin might not strike the charge.
British Dictionary definitions for firing pin

firing pin

the part of the firing mechanism of a firearm that ignites the charge by striking the primer
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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