When you are pulled over by police can the cop see if you carry a firearm id card and if so what firearms you have purchased?

When you are pulled over by police, the officer typically cannot see your firearm ID card or specific details about firearms you have purchased unless they have a reason to access that information. The police may have access to databases that show whether you have a firearm permit, but they do not have direct access to a comprehensive list of all firearms you own. Laws regarding privacy and the sharing of firearm information can vary by state. It's always best to be transparent and follow local laws when interacting with law enforcement.