The NJ Supreme Court in 2004 held that a paintball gun was a weapon, not a firearm, and upheld a guilty plea to unlawful possession of a weapon by a juvenile who shot a paintball pellet at an unoccupied car. The court held that the possession of a paintball gun under circumstances not manifestly appropriate for its use as a lawful weapon violated the statute, and that under that section of the statute, which is a fourth degree crime, the discharge of the gun is not necessary to violate the statute; thus as long as you possess a paintball gun outside of the space for which they are permitted, i.e. a paintball facility, you are guilty of this section. Thus, there is no need to prove any INTENT to use the gun unlawfully, only that it was possessed in a manner not appropriate for its lawful use. Very harsh statute.