Citation(s) from the GunPolicy.org literature library
Giffords Law Center to Prevent Gun Violence. 2021 ‘Machine Guns & Automatic Firearms in Illinois.’ Hardware & Ammunition. San Francisco, CA: Giffords Law Center to Prevent Gun Violence. 2 March
Machine Guns and Automatic Firearms in Illinois
Illinois prohibits the knowing sale, manufacture, purchase, possession or carrying of a machine gun. Illinois defines a machine gun as "any weapon, which shoots, is designed to shoot, or can be readily restored to shoot, automatically more than one shot without manually reloading by a single function of the trigger, including the frame or receiver of any such weapon."
Any combination of parts designed or intended for use in converting any weapon into a machine gun, or any combination or parts from which a machine gun can be assembled, also constitutes a machine gun for purposes of these prohibitions…
[Editor's note: The Giffords Law Center to Prevent Gun Violence regularly updates its webpages with new data as US gun regulation evolves state by state. For the most up-to-date information on US gun laws, please refer to the Giffords URL below]