No, you idiot gun nut. If he is free to buy a gun, he can legally buy a gun. The crime doesn't happen until he gives it to someone he knows is not allowed to have a gun. Of course, he can always say "I didn't know", and walk away scott free. Unless you have a recording of them planning the deal, how are you going to prove different? Of course, a required background check before the crook gets the gun would solve a lot of that. A background check that you are against. You are just wrong, no matter how much you want your excuse to work. You should be ashamed.