Interesting question you pose.... The problems typically lies here....1) I don't know of any state (not saying there isn't one) that does not have a law requiring you to only sell a long gun to someone over 18 and a handgun to someone over 21. The problem with in state shipping would simply be....you have no way of identifying that person as you would FTF, thus making sure they have a valid state id. As a result, you could be shipping a gun to a 16 year old who has mailed you a copy of his dad's driver's license. You just can't tell when you are not FTF or shipping to an FFL. 2) UPS, FEDEX, and the Postal Service all require FFL's to ship a gun anywhere, not just out of state. I hope this helps!
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