[freeandfreezing]

By law, in every state, somebody under 18 must be under supervision of an adult to be in possession of a firearm.

Not true for New Hampshire, except for pistols.

[Mariner]

You guys are right.

Some states don’t even have minimum age requirements for possession of a rifle. There is no federal minimum.

In Wisconsin it is 18.

In Illinois it is 21.

So if he didn’t steal it, somebody committed a felony transferring it to him.