Remington Primers For Sale. Remington Primers are products manufactured by the Remington Arms company, primarily used as components in ammunition for firearms. A primer is a small metal cup that contains a mix of chemicals that ignite when struck, providing the initial spark that ignites the gunpowder in a cartridge. Remington Primers For Sale. Remington Primers are widely used in various types of ammunition for firearms and are known for their reliability and consistent performance.