Firearm and parts laws in Illinois

(b) It is unlawful for any person to knowingly sell, offer to sell, or transfer an unserialized unfinished frame or receiver or unserialized firearm, including those produced using a three-dimensional printer, unless the party purchasing or receiving the unfinished frame or receiver or unserialized firearm is a federal firearms importer, federal firearms manufacturer, or federal firearms dealer.
"Unfinished frame or receiver" means any forging, casting, printing, extrusion, machined body, or similar article that: (1) has reached a stage in manufacture where it may readily be completed, assembled, or converted to be a functional firearm; or (2) is marketed or sold to the public to become or be used as the frame or receiver of a functional firearm once completed, assembled, or converted.

(6) Possesses any device or attachment of any kind designed, used or intended for use in silencing the report of any firearm;

It is unlawful for any person within this State to knowingly manufacture, deliver, sell, import, or purchase or cause to be manufactured, delivered, sold, imported, or purchased by another, an assault weapon, assault weapon attachment, .50 caliber rifle, or .50 caliber cartridge.
"Assault weapon attachment" means any device capable of being attached to a firearm that is specifically designed for making or converting a firearm into any of the firearms listed in paragraph (1) of this subsection (a).

(2) for any importer, manufacturer, dealer, or collector licensed under the provisions of this chapter to ship or transport in interstate or foreign commerce any firearm to any person other than a licensed importer, licensed manufacturer, licensed dealer, or licensed collector, except that-
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(3) for any person, other than a licensed importer, licensed manufacturer, licensed dealer, or licensed collector to transport into or receive in the State where he resides (or if the person is a corporation or other business entity, the State where it maintains a place of business) any firearm purchased or otherwise obtained by such person outside that State, except that this paragraph
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(5) for any person (other than a licensed importer, licensed manufacturer, licensed dealer, or licensed collector) to transfer, sell, trade, give, transport, or deliver any firearm to any person (other than a licensed importer, licensed manufacturer, licensed dealer, or licensed collector) who the transferor knows or has reasonable cause to believe does not reside in (or if the person is a corporation or other business entity, does not maintain a place of business in) the State in which

(b) It shall be unlawful for any licensed importer, licensed manufacturer, licensed dealer, or licensed collector to sell or deliver- (1) any firearm or ammunition to any individual who the licensee knows or has reasonable cause to believe is less than eighteen years of age, and, if the firearm, or ammunition is other than a shotgun or rifle, or ammunition for a shotgun or rifle, to any individual who the licensee knows or has reasonable cause to believe is less than twenty-one years of age;
(2) any firearm to any person in any State where the purchase or possession by such person of such firearm would be in violation of any State law or any published ordinance applicable at the place of sale, delivery or other disposition

Firearm. Any weapon, including a starter gun, which will or is designed to or may readily be converted to expel a projectile by the action of an explosive; the frame or receiver of any such weapon; any firearm muffler or firearm silencer; or any destructive device; but the term shall not include an antique firearm.
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The term shall include a weapon parts kit that is designed to or may readily be completed, assembled, restored, or otherwise converted to expel a projectile by the action of an explosive.

( c ) Partially complete, disassembled, or nonfunctional frame or receiver. The terms "frame" and "receiver" shall include a partially complete, disassembled, or nonfunctional frame or receiver, including a frame or receiver parts kit, that is designed to or may readily be completed, assembled, restored, or otherwise converted to function as a frame or receiver
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The terms shall not include a forging, casting, printing, extrusion, unmachined body, or similar article that has not yet reached a stage of manufacture where it is clearly identifiable as an unfinished component part of a weapon ( e.g., unformed block of metal, liquid polymer, or other raw material). When issuing a classification, the Director may consider any associated templates, jigs, molds, equipment, tools, instructions, guides, or marketing materials that are sold, distributed, or possessed with the item or kit
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Example 1 to paragraph (c)-Frame or receiver: A frame or receiver parts kit containing a partially complete or disassembled billet or blank of a frame or receiver that is sold, distributed, or possessed with a compatible jig or template is a frame or receiver, as a person with online instructions and common hand tools may readily complete or assemble the frame or receiver parts to function as a frame or receiver.

(25) The terms "firearm silencer" and "firearm muffler" mean any device for silencing, muffling, or diminishing the report of a portable firearm, including any combination of parts, designed or redesigned, and intended for use in assembling or fabricating a firearm silencer or firearm muffler, and any part intended only for use in such assembly or fabrication.

(b) Machinegun The term "machinegun" means any weapon which shoots, is designed to shoot, or can be readily restored to shoot, automatically more than one shot, without manual reloading, by a single function of the trigger. The term shall also include the frame or receiver of any such weapon, any part designed and intended solely and exclusively, or combination of parts designed and intended, for use in converting a weapon into a machinegun, and any combination of parts from which a machinegun can be assembled if such parts are in the possession or under the control of a person.

432.2 Handguns Handguns, and other firearms capable of being concealed on the person, are nonmailable unless mailed between the parties listed in 432 , after the filing of an affidavit or statement described in 432.22 or 432.24 , and are subject to the following:
Handgun Parts: Parts of handguns are mailable, except for handgun frames, receivers, or components regulated under 18 U.S.C. Chapter 44.
Licensed manufacturers, importers, and dealers of firearms. Signed statement on PS Form 1508, Statement by Shipper of Firearms. The mailer must be a licensed manufacturer, importer, or dealer mailing to another licensed manufacturer, importer, or firearms dealer.

The FedEx Service Guide prohibits firearm shipments. However, customers holding a Federal Firearms License (FFL) may work with their FedEx account executive to obtain approval to ship firearms with FedEx. This will require customers holding an FFL to execute a FedEx Firearms Shipping Compliance Agreement.
Shippers that do not hold an FFL are not eligible to obtain approval and are prohibited from shipping firearms with FedEx.