Restrictions on gun ownership in Illinois vary depending on licensing, residency, location, age and several other factors. However, licensed residents over the age of 21 are allowed to own handguns, shotguns, semi-automatic rifles or any antique gun that the State determines is primarily a collector's item, according to the NRA.
In Illinois, residents must have a valid FOID card to legally purchase or obtain any type of gun, as noted by the NRA's Institute for Legislative Action. Non-residents are allowed to possess loaded guns only if they are registered firearm owners in their home state or are hunting in a permitted area. It is illegal to own machine guns or any other types of automatic weapons in Illinois.