Gun owners argue the ban infringes on their constitutional right to bear arms. Gun control advocates argue the ban is common sense and a way to protect Illinois residents from guns that are designed to be extra lethal.

Guns classified by the state of Illinois as "assault weapons" have been banned since Jan. 11. That means that hundreds — perhaps thousands — of guns can no longer be legally sold in Illinois. Those who already own guns and ammunition covered by the ban can keep them; they must be registered with the state.

In October, Americans purchased an estimated 1.92 million guns — an increase of 67% from October 2019, according to an analysis of FBI data. Why more Americans are purchasing guns in 2020.