no
No.
No.
No
No
Depends on where you are. In MOST of the US, there is no requirement to register an ordinary firearm. There is also no place to register a gun- on line or otherwise.
Your local police can give you state specific information.
14 years
Go to your local police station.
Depends on where you are. In most of the US, there IS no registration of firearms.
Not to own a gun. Only to carry it concealed.
5 yrs