Jacob, it sure is. This currently has no restricted features. So it's perfectly legal in Illinois/cook county. Hope this helps. If interested here's a link to Illinois's restrictions..................... budsgunshop.com/feeds/state_reg/illinois_restrictions.pdf

Yes, this model is perfectly legal to own in your state of Illinois.

Hi Jacob and welcome to the Buds Community. Yes Sir. It is as legal as the Illinois State Bird the Northern Cardinal. Cheers and stay safe! Details under Handguns here : budsgunshop.com/feeds/state_reg/illinois_restrictions.pdf

Jacob, yes sir this is legal in Illinois/Cook County. The magazine limit on handguns is 15rds, so you are good to go with this.
budsgunshop.com/feeds/state_reg/illinois_restrictions.pdf ,
Stay safe & have a great day!