Amends the Criminal Code of 2012. Provides for enhanced sentencing for: (1) aggravated vehicular hijacking; (2) unlawful use or possession of weapons by felons or persons in the custody of the Department of Corrections facilities; (3) aggravated discharge of a firearm; (4) being an armed habitual criminal; and (5) use of a stolen or illegally acquired firearm in the commission of an offense. Adds additional protected classes of persons for which the offense of aggravated discharge of a firearm applies. Amends the Unified Code of Corrections to make conforming changes.