Do you live in the US? In a very "red" state? Some states, particularly red states, still permit the sale of firearms between private parties without the need to go through a background check or having a license. I would still tell you that even if you were able to obtain a gun in this manner, that if you are a felon, or have been adjudicated mentally incompetent and involuntarily sectioned, that you would still be in violation of federal law for possessing the gun. Also, if you crossed over state lines, say from your state to a neighboring state, to buy a firearm, you would be in violation of federal law.