Synopsis As Introduced Amends the Criminal Code of 2012. Enhances the penalties for certain violations of the statutes concerning unlawful use of weapons, unlawful use or possession of weapons by felons, aggravated unlawful use of a weapon, and unlawful possession of a firearm by a street gang member. Provides that each circuit court shall transmit to every local law enforcement agency located within the circuit, on a quarterly basis, the disposition of all cases involving violations of the Deadly Weapons Article of the Code within the previous quarter. Amends the Unified Code of Corrections. Provides that a prisoner serving a sentence for certain unlawful use of weapons violations, unlawful use or possession of a weapon by felons, aggravated unlawful use of a weapon, or unlawful possession of a firearm by a street gang member shall receive no more than 4.5 days of sentence credit for each month of his or her sentence of imprisonment. Effective immediately.