Juvenile delinquents and firearms.

Prohibits a person who has been adjudicated a delinquent child for committing an act while armed with a firearm that would be a serious violent felony if committed by an adult (serious delinquent) from possessing a firearm unless the person is at least: (1) 26 years of age, in the case of less serious acts; or (2) 28 years of age, in the case of more serious acts. Makes possession of a firearm by a serious delinquent a Level 6 felony, and increases the penalty to a Level 5 felony for a second or subsequent offense. Requires a juvenile court to transmit certain findings to the office of judicial administration for transmission to the National Instant Criminal Background Check System (NICS) upon a finding of delinquency for an act that would be a serious violent felony if committed by an adult.