BudsGunShop.com - Legal in cook county?

No this rifle is prohibited in Cook County, they classify it as an "assault weapon"
Assault weapin definition according to Cook County.
"1.Any semi-automatic rifle that has a fixed magazine, that has the capacity to accept more than ten rounds of ammunition. 2.A semi-automatic rifle that has the capacity to accept a large capacity magazine detachable or otherwise and one or more of the following: a.Only a pistol grip without a stock attached; b.Any feature capable of functioning as a protruding grip that can be held by the non-trigger hand; c.A folding, telescoping, or thumbhole stock; d.A shroud attached to the barrel, or that partially or completely encircles the barrel, allowing the bearer to hold the firearm with the non-trigger hand without being burned, but excluding a slide that encloses the barrel; or e.A muzzle brake or muzzle compensator. "
This rifle has a 17rd magazine, a barrel shroud, and an adjustable stock.
--------------
Full details here-----------
budsgunshop.com/feeds/state_reg/illinois_restrictions.pdf />

Jorge, unfortunately this is not legal in cook county. Sorry but hope this helps.

Jorge, unfortunately it is ***NOT*** legal in Cook County Sir. Cheers and stay safe!