firing pin

noun

: the pin that strikes the cartridge primer in the breech mechanism of a firearm

Examples of firing pin in a Sentence

Recent Examples on the Web Officials also found a live 40-caliber round on the floor, a 40-caliber magazine, the back plate to the gun and a firing pin located underneath the TV. The Arizona Republic, 21 Mar. 2024 Sorrells’ team loads evidence collected from across Dallas-Fort Worth crime scenes, as well as test fires weapons to see if the casing — with its specific firing pin impression, scrapes and ejector mark invisible to the naked eye — match other cases. Dallas News, 28 Nov. 2022 Police allegedly found a revolver loaded with four rounds of ammunition, but the firing pin was empty, per WTHR. Want to keep up with the latest crime coverage? Tristan Balagtas, Peoplemag, 8 Mar. 2023 When the trigger is pulled, a firing pin strikes the rear of the ammunition cartridge, igniting the powder, which burns extremely fast and forces the bullet down the barrel of a firearm. John Ismay, New York Times, 23 June 2023 The staked gas key is nitride-processed, and a titanium firing pin has a physical vapor deposition coating for durability. Michael Dickerson, Outdoor Life, 10 Apr. 2023 In modern revolvers, a single pull of the trigger advances the cylinder to a fresh cartridge, pulls back the hammer, and releases the hammer to strike the primer with the firing pin, firing the handgun. Kyle Mizokami, Popular Mechanics, 15 Apr. 2023 In the most basic sense, guns work like this: a bullet is loaded into the rear of the barrel, which is a tube connected to the firing pin. Kyle Mizokami, Popular Mechanics, 15 Apr. 2023 In February, Greenberg announced that Louisville police would remove firing pins from guns and add labels warning that the weapons may have been used in a homicide before sending them to Kentucky State Police. Kyle Melnick, Washington Post, 12 Apr. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'firing pin.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1874, in the meaning defined above

Time Traveler
The first known use of firing pin was in 1874

Dictionary Entries Near firing pin

Cite this Entry

“Firing pin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/firing%20pin. Accessed 23 Apr. 2024.

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