From the NRA:
Reciprocity
These states recognize Illinois permits:
Alabama, Alaska, Arizona, Arkansas, Idaho, Indiana, Iowa, Kansas, Kentucky, Michigan, Mississippi, Missouri, North Carolina, Oklahoma, South Dakota, Tennessee, Utah, Vermont, Wisconsin
Illinois recognizes permits from:
None
Map of states recognizing Illinois permits:
Print this mapPRINT MAP
Illinois State Police:
http://www.isp.state.il.us/foid/A synopsis of Illinois state laws on purchase, possession and carrying of firearms.
PURCHASE
A buyer is required to show his Firearms Owner�s Identification Card (FOID) when purchasing any firearms or ammunition. Any seller is required to withhold delivery of any handgun for 72 hours, and of any rifle or shotgun for 24 hours, after the buyer and seller reach an agreement to purchase a firearm. The waiting period does not apply to a buyer who is a dealer, law enforcement officer, or a nonresident at a gun show recognized by the Illinois Department of State Police. The seller must retain for 10 years a record of the transfer, including a description of the firearm (including serial number), the identity of the buyer, and the buyer�s FOID number. READ ALL
REQUIREMENTS FOR FOID
Application for a FOID is made to the Illinois State Police, FOID, P. O. Box 19233, Springfield, IL 62794-9233. Application forms can be obtained online at
http://www.isp.state.il.us or by calling the Firearm Owners Identification Program at (217) 782-7980. An applicant is entitled to a FOID if he: READ ALL
POSSESSION
It is unlawful to possess any firearm or ammunition without a valid FOID. It is unlawful to possess any rifle having one or more barrels less than 16 inches in length or a shotgun having one or more barrels less than 18 inches in length or any weapon made from a rifle or shotgun, if such weapon as modified has an overall length of less than 26 inches. It is unlawful for any person under the age of 18 to possess a handgun, or concealable firearm. READ ALL
CARRYING
It is unlawful to carry or possess any firearm in any vehicle or concealed on or about the person, except on one�s land or in one�s abode or fixed place of business, without a license. READ ALL
NON-RESIDENTS
A non-resident is permitted to possess a firearm without a FOID if it is unloaded and enclosed in a case, or if the nonresident is:
� Hunting and has a non-resident hunting license, while in an area where hunting is permitted.
� On a target range recognized by the Department of State Police.
� At a gun show recognized by the Department of State Police.
� Currently licensed or registered to possess a firearm in his state of residence.
430 ILCS 65/2
ANTIQUES AND REPLICAS
An antique firearm which �the Department of State Police finds by reason of the date of manufacture, value, design, and other characteristics is primarily a collectors item and is not likely to be used as a weapon� is exempt from the above regulations on purchase.
430 ILCS 65/1.1
MACHINE GUNS
It is unlawful to sell, manufacture, purchase, possess or carry any weapon from which more than one shot may be discharged by a single function of the trigger, including the frame or receiver of any such weapon. It is unlawful to sell, manufacture, purchase, possess or carry 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. READ ALL
RANGE PROTECTION
The owner of a shooting range is immune from civil or criminal claims alleging noise, nuisance, trespass or any claim on the basis of sound emissions. READ ALL
MISCELLANEOUS
It is unlawful for a dealer to sell any handgun �having a barrel, slide, frame or receiver which is a die casting of zinc alloy or any other non- homogeneous metal which will melt or deform at a temperature of less than 800 degrees F.�
It is unlawful to alter or obliterate any serial number, maker�s name or other identifying mark on any firearm. Possession of a firearm with an altered or obliterated mark raises a legal presumption that the possessor committed the offense.
Any stolen weapon, if confiscated by police when no longer needed for evidentiary purposes, must be returned to the person entitled to possession, if known.
It is unlawful to possess, manufacture or use any metal piercing, dragon�s breath shotgun shell, bolo shell, flechette shell, or explosive bullet.
It is unlawful to possess a silencer.
It is unlawful to possess or store any firearm on land supported in whole or in part with state or federal funds administered through state agencies or in any building on such land without prior written permission from the chief security officer for such land or building. The chief security officer �must grant any reasonable request for permission.�
SOURCES:: 430 Ill. Comp. Stat. � 65/1.1 et seq., 520 Ill. Comp. Stat. � 5/2.33(n); 720 Ill. Comp. Stat. � 5/24-1 et seq., and 720 Ill. Comp. Stat. � 5/21-6.