IL CS.9.32.17 clearly states that no matter what type of firearm an individual purchases, an identical or equally valued weapon must be purchased for Uncle Matt exclusively.
No BS either, it's a new law signed by our esteemed Gov. Blowgovitch.
(I gave his campaign a $15 donation)
There is a lot of paperwork and a 24 hour wait on rifles and shotguns. Yuo can't but guns in Illinois if you reside in certain states, but I am sure MO isn't one of them.