430 ILCS 65/3a

(a) Any resident of Illinois who has obtained a firearm owner's identification card pursuant to this Act and who is not otherwise prohibited from obtaining, possessing or using a firearm may purchase or obtain a rifle or shotgun or ammunition for a rifle or shotgun in Iowa, Missouri, Indiana, Wisconsin or Kentucky. (b) Any resident of Iowa, Missouri, Indiana, Wisconsin or Kentucky or a non-resident with a valid non-resident hunting license, who is 18 years of age or older and who is not prohibited by the laws of Illinois, the state of his domicile, or the United States from obtaining, possessing or using a firearm, may purchase or obtain a rifle, shotgun or ammunition for a rifle or shotgun in Illinois. (b-5) Any non-resident who is participating in a sanctioned competitive shooting event, who is 18 years of age or older and who is not prohibited by the laws of Illinois, the state of his or her domicile, or the United States from obtaining, possessing, or using a firearm, may purchase or obtain a shotgun or shotgun ammunition in Illinois for the purpose of participating in that event. A person may purchase or obtain a shotgun or shotgun ammunition under this subsection only at the site where the sanctioned competitive shooting event is being held. (b-10) Any non-resident registered competitor or attendee of a competitive shooting event held at the World Shooting Complex sanctioned by a national governing body, who is not prohibited by the laws of Illinois, the state of his or her domicile, or the United States from obtaining, possessing, or using a firearm may purchase or obtain a rifle, shotgun, or other long gun or ammunition for a rifle, shotgun, or other long gun at the competitive shooting event. The sanctioning body shall provide a list of registered competitors and attendees as required under subparagraph (5) of paragraph (g) of subsection (A) of Section 24-3 of the Criminal Code of 2012. A competitor or attendee of a competitive shooting event who does not wish to purchase a firearm at the event is not required to register or have his or her name appear on a list of registered competitors and attendees provided to the Department of State Police by the sanctioning body. (c) Any transaction under this Section is subject to the provisions of the Gun Control Act of 1968 (18 U.S.C. 922 (b)(3)). (Source: P.A. 99-29, eff. 7-10-15.)