18 Pa.C.S. § 6111.4: Registration of firearms.

Notwithstanding any section of this chapter to the contrary, nothing in this chapter shall be construed to allow any government or law enforcement agency or any agent thereof to create, maintain or operate any registry of firearm ownership within this Commonwealth. For the purposes of this section only, the term "firearm" shall include any weapon that is designed to or may readily be converted to expel any projectile by the action of an explosive or the frame or receiver of any such weapon.