Yes. You have to be at least 21. Mentally, that is...
Most states require a permit to posses any type of fire arm, regardless of what you intend to do with it.
If they're illegal, it doesn't matter how old you are.
depends on what tpe and how old the rifle is
18 to buy 17 to posses.
Located ontop of the rifle.
18
Contact manufacturer through their website- have the serial humber of your rifle. We cannot answer with no information on your rifle.
18, just like any other rifle.
posses a driver's license.
18
Yes and No. You will have to provide more details of the situation.
If she does not posses a prior military service, no.