@joey: in Chicago you currently cannot own a gun until you are 21, it is illegal to own any semi-auto (which covers most handguns and most modern rifles), shortened shotguns, AR15, anything that has attachments, anything with more than 10 rounds or other home defense weapons.
For the few remaining weapons, which would be single shot rifles, revolvers and derringers, you are required to submit yourself to an investigation, perform a 16 hour training course and then anyone (your neighbor, family, law enforcement) can simply say that you are a danger to yourself or others and immediately your second amendment rights are terminated upon review by an unelected review panel that isn’t liable to any branch of government.
At any point you have the gun outside your house, it must be completely concealed, your gun most be broken down, locked up and unloaded, carrying a gun even with a difficult to obtain license is illegal in all public transport, restaurants, bars, stadiums, parks, library, museum, stores, pretty much ANYWHERE you go.
Yeah, it’s pretty hard to obtain and carry a firearm in Chicago, and the crime rates are accordingly high and going higher as lawful citizens cannot defend themselves. Even the EU (directive 2021/555) doesn’t have quite such stringent gun laws.