^what he said. I have done it but required an FFL on the receiving. The laws are so damned jumbled I didn't want to get caught up in an illegal transfer by failing to file the right paperwork and perform the required FOID and permit verification. Bonus is that sellers FFL usually just charges for shipping and a small service fee, they also get better shipping methods than a non-licensed person does. Gunbroker is a good site to offer the sale. You also have a documented bound volume in and out if the buyer misbehaves with the gun.
"The whole of the Bill (of Rights) is a declaration of the right of the people at large or considered as individuals.... It establishes some rights of the individual as unalienable and which consequently, no majority has a right to deprive them of." (Albert Gallatin of the New York Historical Society, October 7, 1789)
"A free people ought not only to be armed and disciplined, but they should have sufficient arms and ammunition to maintain a status of independence from any who might attempt to abuse them, which would include their own government." - George Washington