No data
You don't have to go to jsil just for having a gun. You can if you shoot someone without any good initiative such as if it's a life or death crisis. You can if you have a gun without a liscense. There are many reasons you can go to jail involving a gun, but not for just having a gun.
17 years
15-20 depending on the gun
FOREVER. Convicted felons can never own a firearm or vote.
about 5 or 6 years or so.
There are thousands of laws that relate to gun control, and cover every state. Those laws have been there for years.
2.5
It depends on where you are located.
Protection
i would say Alaska...Having been in Arizona for a few years, I would say that they have more relaxed gun laws, most can brandish their weapons holstered and in the open, if they chose to.
Any gun can just as easily hurt its owner as anyone else. There are many companies who make BB guns that will last for years