Amends the Juvenile Court Act of 1987. Provides that if the minor (1) has previously been placed on probation for an offense that involves the possession or discharge of a firearm not causing any injury; and (2) is convicted of a subsequent offense involving the possession or discharge of a firearm not causing any injury, then the court shall require the minor to participate in social service programs offered through juvenile probation and comply with referral recommendations for no less than 3 months. Provides that if the minor does not complete the referral recommendations, the court shall commit the minor to the Department of Juvenile Justice to complete the recommended services. Provides that a minor convicted of a subsequent offense involving the use of a firearm causing serious injury, great bodily harm, or death shall be committed to the Department of Juvenile Justice with the Department providing services, including, but not limited to, education, mental health services, drug treatment, and mentoring. Amends the Unified Code of Corrections. Reenacts the provisions of the Code that were repealed on January 1, 2024 concerning sentencing guidelines for individuals with prior felony firearm-related or other specified convictions. Deletes the repeal of those provisions. Amends the Criminal Code of 2012 to make conforming changes. Effective immediately.