Not in the US. A conviction of domestic violence is a bar to buying or possessing a firearm.
Depends on what you were convicted of. If the assault was a felony, no. If the assault was of a family member, that is considered "domestic violence". FEDERAL law- not state- bars such a person from possessing any firearm in any state.
Arrested? Yes. Convicted? Not if the assault was a felony, or against a domestic partner.
No
NO
no
Yes, especially if you have been convicted of a crime against a family member/ domestic partner.
18 to buy a rifle or shotgun, 21 to buy a handgun or assault rifle.
YES
Depends on the misdemeanor, and whether you were convicted or not.
They would most likely be charged with assault. Penalty (if convicted) would depend on the judge.
If CONVICTED of a felony, no. However, if convicted of a misdemeanor, yes- unless it was for a crime of domestic violence.