For any person, other than authorized peace officers, to display or use on Agency-controlled lands, except as authorized by the Agency on hunting, field trial, target, or special event areas, any gun including shotgun, rifle, pistol, revolver, air or BB gun, sling shot, bow and arrow, switchblade knife with spring loaded blade, throwing knife, tomahawk or throwing axe, or martial arts devices. For purposes of historic interpretation, however, period weapons, or reproductions of such weapons, may be displayed or used within the context of reenactment.
Ill. Admin. Code tit. 17, § 4160.170