Since Pennsylvania has no form of Registration, you are just fine to carry any weapon that you legally own (Or, if you have a LTCF, any weapon that you have borrowed with the permission of the owner)
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.§ 6115. Loans on, or lending or giving firearms prohibited.
(a) Offense defined.--No person shall make any loan secured by mortgage, deposit or pledge of a firearm, nor, except as provided in subsection (b), shall any person lend or give a firearm to another or otherwise deliver a firearm contrary to the provisions of this subchapter.
(1) Subsection (a) shall not apply if any of the following apply: (i) The person who receives the firearm is licensed to carry a firearm under section 6109 (relating to licenses).