Buy Remington Small Pistol Primer #5-1/2 In Stock Now . Being a leader in both the firearms and ammunition industry Remington knows how important it is to have the highest quality ammunition available to make your firearm perform to its fullest potential. This starts with using the best components possible to manufacture ammunition. These are the same primers Remington uses in the production of their own ammunition and performs to their highest standards. If you want the best possible out of your firearm you have to start with the best that’s why reloaders choose Remington components for their loads.