Hi Roger and welcome to the Buds Community. It is Illinois legal currently. 10rd Magazines available here : https://gunmagwarehouse.com/ruger-mini-14-223-5-56-10-round-magazine-blue-steel.html

Roger, yes sir, this is perfectly legal in Illinois. It doesn't have a pistol grip, collapsible stock, threaded barrel or any other restricted feature. So you're good to go. Hope this helps. If interested here's a link to Illinois's restrictions...................... budsgunshop.com/feeds/state_reg/illinois_restrictions.pdf

Hi Roger, The Ruger Mini 14 Ranch is Illinois legal, it does not have any of the banned features.
Details here budsgunshop.com/feeds/state_reg/illinois_restrictions.pdf ,
Stay safe & have a great day!