Laws are weird in some places. Like in some states if someone breaks into your house with a knife and you shoot them, you will go to jail for a very long time, as you can only use force equal to that used on you. Some states if someone knocks on your door you can blow their head off with a machine gun and be a-okay. In California paintball guns are considered BB guns and shooting someone is a misdemeanor. Some states it could be considered a firearm and you could get 10 years.