The first question is whether they really are an "ex" felon, or not. Once you're convicted of a felony, you remain a felon, always and forever. The only way you could really be an "ex" felon is if the conviction was overturned.
So, for a felon to have their firearms rights restored... well, if it's a federal felony, the chances are slim to none. If it's a state - but not a federal - felony, then it may be possible. You'll need a good lawyer, a good bit of money... and then still nothing is guaranteed.
No. Not in Arizona, nor anywhere else.
No. The law against being a felon in possession of a firearm is a federal law.
They can forbid you to possess any firearm.
Nothing classed as a firearm. Some state laws prohibit even muzzleloaders and air rifles - no way of telling if that's your case without knowing your state.
Felons cannot have guns as a general rule. You would be more informed as to the correct answer to this question that will keep you out of additional trouble by consulting with your local court system.
I'm assuming you mean "Can a sex offender own a firearm?" If so, the answer is no. Felons cannot own firearms.
No
yes
You can pawn a firearm which you own.. if you pawn a firearm which you do not own, the legitimate owner may report it stolen, and you will be prosecuted.
No. No convicted felon can ever lawfully be in possession of a firearm.
No
It is possible, yes.