Hey guy's I have a proof of ownership question. The first few guns I bought were from private sellers so I have bills of sales for all of them in a safe deposit box. As of late I've bought a couple of Russian rifles from Big-5, Bought a mossberg from BIG-5 and then bought a AR-15 Lower from Discount Guns. All I received from them was receipts for the purchase nothing more. Unfortunately when I got kicked out of my house my parents threw all of that away without realizing it's importance. Long story short Is there anything that ties those guns to me other than my word? I would really like to have something official for each gun saying this belongs to XXX. I wasn't sure if they were actually registered to a person when they are purchased or how that works so I apologize in advance if that's a dumb question but its just for a little peace of mind.