Synopsis As Introduced Amends the Illinois State Police Law of the Civil Administrative Code of Illinois. Provides that the Division of Criminal Investigation of the Illinois State Police shall conduct other investigations as provided by law, including, but not limited to, investigations of human trafficking, illegal drug trafficking, and illegal firearms trafficking. Provides that the Division of Criminal Investigation shall provide statewide coordination and strategy pertaining to firearm-related intelligence, firearms trafficking interdiction, and investigations. Amends the Firearm Owners Identification Card Act. Eliminates provisions that permit a person under 21 years of age who is not an active duty member of the United States Armed Forces or the Illinois National Guard to obtain a Firearm Owner's Identification Card with parental consent. Amends the Wildlife Code. Provides that when a person under 21 years of age is hunting under the supervision of a adult, the adult must possess a Firearm Owners Identification Card. Amends the Firearms Restraining Order Act. Provides that the State's Attorney of the county where the petition is filed may act as a friend of the court in any action filed under the Act. Provides that a petitioner may request a one-year (rather than 6-month) firearms restraining order. Amends the Criminal Code of 2012. Makes it unlawful to manufacture, deliver, sell, or purchase or cause to be manufactured, delivered, sold, or purchased or cause to be possessed by another, an assault weapon, assault weapon attachment, .50 caliber rifle, or .50 caliber cartridge. Makes it unlawful for any person to knowingly possess an assault weapon, .50 caliber rifle, or .50 caliber cartridge 300 days after the effective date of the amendatory Act, except possession of weapons registered with the Illinois State Police in the time provided. Provides exemptions and penalties. Prohibits the manufacture, delivery, sale, purchase, or possession of large capacity ammunition feeding devices. Defines terms. Provides exemptions and penalties. Makes other changes. Effective immediately.