An Act amending Title 18 (Crimes and Offenses) of the Pennsylvania Consolidated Statutes, in firearms and other dangerous articles, further providing for sale or transfer of firearms, for duties of the Pennsylvania State Police and for the offense of altering or obliterating marks of identification and providing for destruction of confiscated or recovered firearms.

HB 604 modifies Pennsylvania's firearms laws to clarify procedures for handling confiscated guns. It requires law enforcement to make "reasonable efforts" to return seized firearms to their lawful owners within 120 days, failing which the guns must be destroyed. If the owner is identified but prohibited from owning firearms, or if the owner cannot be found, destruction is mandatory under new rules. The bill also establishes a detailed registry for confiscated firearms (tracking serial numbers, make/model, and date seized) and specifies that guns can only be melted at state smelters after completing this process. This directly affects Pennsylvania State Police and local law enforcement agencies managing seized firearms.