Yes, firearms are highly regulated in the state of Illinois. The state has some of the strictest gun laws in the United States. In Illinois, firearms owners are required to obtain a Firearm Owner’s Identification (FOID) card, and to register all firearms within the state. Additionally, Illinois requires background checks for all firearm purchases, including private sales, and has established waiting periods for the purchase of handguns.
Illinois also regulates the sale and possession of assault weapons, bans high-capacity ammunition magazines, and has introduced a number of provisions aimed specifically at preventing domestic abusers from obtaining or possessing firearms.
The legal age for purchasing any kind of firearm, including rifles and shotguns, in Illinois is 18, and 21 for handguns.
In summary, Illinois has very strict gun control laws, which regulate the possession, purchase, and registration of firearms in the state.