Search Result for "firing pin":
Wordnet 3.0

NOUN (1)

1. striker that ignites the charge by striking the primer; 



The Collaborative International Dictionary of English v.0.48:

Firing pin \Fir"ing pin`\
   In the breech mechanism of a firearm, the pin which strikes
   the head of the cartridge and explodes it.
   [Webster 1913 Suppl.]


WordNet (r) 3.0 (2006):

firing pin
    n 1: striker that ignites the charge by striking the primer