A primer in firearms is a small device that ignites the gunpowder in a cartridge when struck by the firing pin or hammer of a firearm. It is a crucial component of ammunition, as it initiates the combustion process that propels the bullet down the barrel. Primers come in different types, including: 1. **Boxer Primers**: Commonly used in modern ammunition, these primers have a single flash hole and are typically found in centerfire cartridges.
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