An Act amending Title 18 (Crimes and Offenses) of the Pennsylvania Consolidated Statutes, in firearms and other dangerous articles, further providing for definitions and for possession of firearm by minor; and making editorial changes.

SB 559 amends Pennsylvania law to restrict firearm and assault weapon possession by minors. It prohibits individuals under 18 from possessing standard firearms (with limited exceptions for supervised activities or hunting) and raises the age limit for assault weapons to under 21, barring possession without specific exemptions. The bill defines "assault weapon" to include firearms with features like detachable magazines, folding stocks, or specific grips, and lists exceptions for active-duty military personnel, peace officers, and weapon-carrying probation officers. Adults who knowingly provide firearms to minors in violation of these rules face felony charges, and illegally possessed firearms must be seized and forfeited upon conviction. The bill is currently pending in the Judiciary Committee.