firing pin

American  

noun

Ordnance.

1. a plunger in the firing mechanism of a firearm or cannon that strikes the cartridge primer, igniting the propelling charge.

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firing pin British  

noun

1. the part of the firing mechanism of a firearm that ignites the charge by striking the primer

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Etymology

Origin of firing pin

First recorded in 1870–75

Example Sentences

It continued: "If these features were somehow bypassed, a conspicuously off-centre firing pin impression would result."

From BBC

Greenberg said his administration has already directed police to remove the firing pin in confiscated guns before turning them over to the state.

From Salon

In a quick response, the U.S. team member told the Ukrainian to remove the gun’s breech at the rear of the howitzer and manually prime the firing pin so the gun could fire.

From Washington Times

In a quick response, the U.S. team member told the Ukrainian to remove the gun’s breech at the rear of the howitzer, and manually prime the firing pin so the gun could fire.

From Seattle Times

The process involves engraving a serial number inside the firearm, on the tip of the firing pin or breech face.

From Seattle Times