So, i've heard some people saying that you can find really good deals sitting outside at a gun show and striking up a conversation with a stranger. My question is about the legality of the whole situation. What if i buy a gun used in a criminal act of some kind? Is there a way i can run the serial # before i buy one. Also is even legal to do a "gun deal" on the street or in a parking lot like that? I've grown up around firearms so guns in public are nothing new. I've just always bought mine new so i wouldn't have to worry about these things. Any help would be greatly appreciated.