4.1 Pennsylvania Uniform Firearms Act (18 Pa.C.S. Chapter 61)

Key Takeaways

  • The Pennsylvania Uniform Firearms Act (18 Pa.C.S. §§ 6101–6128) establishes statewide statutory authority governing firearm possession, licensing, sales, transfer, and carry across the Commonwealth.
  • Under 18 Pa.C.S. § 6102, a 'firearm' is defined for regulatory and licensing purposes as any pistol or revolver with a barrel length under 15 inches, any shotgun with a barrel under 18 inches, any rifle with a barrel under 16 inches, or any weapon with an overall length under 26 inches.
  • Under 18 Pa.C.S. § 6105 (Persons Not to Possess), individuals convicted of violent crimes, three felony drug offenses, three DUIs within 5 years, subject to active final PFA orders (§ 6105(c)(6)), or involuntarily committed for mental health treatment (50 P.S. §§ 7302–7304) are strictly prohibited from possessing firearms.
  • Under 18 Pa.C.S. § 6120, Pennsylvania enforces complete state preemption, barring counties, cities, boroughs, and townships from enacting local firearm or ammunition ordinances, bans, or zoning restrictions.
  • Open carry is lawful without a permit for non-prohibited persons throughout Pennsylvania, EXCEPT in Cities of the First Class (Philadelphia under 18 Pa.C.S. § 6108), where an active LTCF or statutory exemption is strictly required for open or concealed carry on public streets and property.
Last updated: August 2026

4.1 Pennsylvania Uniform Firearms Act (18 Pa.C.S. Chapter 61)

Quick Answer: The Pennsylvania Uniform Firearms Act (UFA), codified at 18 Pa.C.S. §§ 6101–6128, occupies the entire legal field of firearm regulation in the Commonwealth. Under § 6102, a firearm is defined for licensing and carry purposes by strict dimensional barrel thresholds (handguns <15", shotguns <18", rifles <16", or overall <26"). Section 6105 enumerates statutory disqualifications—including violent felonies, three felony drug convictions, three DUIs within five years, active Protection From Abuse (PFA) orders, and involuntary civil mental health commitments (50 P.S. § 7302). Under § 6120, local municipalities are completely preempted from enacting local gun laws. Open carry on foot is lawful without a license statewide, except in Philadelphia (a City of the First Class under § 6108), where a License to Carry Firearms (LTCF) is mandatory for both open and concealed carry.


Legislative Scope and Purpose of 18 Pa.C.S. Chapter 61

The Pennsylvania Uniform Firearms Act (UFA), codified in Chapter 61 of Title 18 (18 Pa.C.S. §§ 6101–6128), is the comprehensive statutory framework governing firearms across the Commonwealth of Pennsylvania. Enacted by the Pennsylvania General Assembly, the UFA balances individual constitutional protections under Article I, Section 21 of the Pennsylvania Constitution ("The right of the citizens to bear arms in defence of themselves and the State shall not be questioned") with essential public safety controls, criminal disqualifiers, licensing procedures, and commercial transfer regulations.

For private security guards and PA Act 235 certified lethal weapons agents, the UFA defines the legal boundaries of armed carry, weapon possession, vehicle transport, and individual eligibility. Operating armed without strict adherence to Chapter 61 exposes security personnel to felony prosecution, loss of Act 235 certification, and severe civil liability.


Statutory Definition of "Firearm" (18 Pa.C.S. § 6102)

In everyday language, the word "firearm" refers to any projectile weapon utilizing an explosive propellant. However, under 18 Pa.C.S. § 6102, the Uniform Firearms Act establishes a very specific, dimensional definition of a "Firearm" that applies to licensing, concealed carry, and vehicle transport regulations:

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|          18 Pa.C.S. § 6102 STATUTORY "FIREARM" DEFINITION (CARRY/UFA)   |
+-------------------------------------------------------------------------+
| - Any pistol or revolver with a barrel length < 15 INCHES               |
| - Any shotgun with a barrel length < 18 INCHES                          |
| - Any rifle with a barrel length < 16 INCHES                            |
| - Any firearm with an overall length < 26 INCHES                        |
+-------------------------------------------------------------------------+

Critical Statutory Distinctions

  1. Handguns: Standard duty pistols (e.g., Glock 17, SIG Sauer P320) and revolvers almost always have barrels under 15 inches and are therefore statutory "firearms" under § 6102 requiring an LTCF or Act 235 duty exemption for concealed carry or vehicle transport.
  2. Long Guns (Rifles and Shotguns): Full-length rifles (barrel ≥ 16") and standard shotguns (barrel ≥ 18") exceeding 26 inches in overall length do not fall under the narrow § 6102 carry definition for handgun licensing. However, they remain firearms under general criminal statutes and are subject to strict vehicle transport bans under the Pennsylvania Game Code (34 Pa.C.S. § 2503).
  3. Barrel Measurement Standard: Barrel length is measured from the closed face of the breech or bolt to the muzzle end of the barrel, excluding unpinned muzzle attachments.

Persons Not to Possess Firearms (18 Pa.C.S. § 6105)

Under 18 Pa.C.S. § 6105, Pennsylvania establishes strict categorical disqualifications. A person convicted of an enumerated offense or subject to specific civil adjudications is legally prohibited from possessing, using, controlling, manufacturing, transferring, or obtaining a license for a firearm.

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|             18 Pa.C.S. § 6105 STATUTORY DISQUALIFICATION CATEGORIES     |
+-------------------------------------------------------------------------+
| 1. ENUMERATED CRIMES OF VIOLENCE (§ 6105(b))                            |
|    - Murder, voluntary manslaughter, aggravated assault, kidnapping     |
|    - Robbery, burglary, arson, rape, sexual assault, riot               |
|    - Carrying firearm without license (§ 6106), weapons of mass destr.  |
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| 2. DRUG & CONTROLLED SUBSTANCE OFFENSES (§ 6105(c)(2))                  |
|    - Any offense under The Controlled Substance Act punishable by       |
|      imprisonment exceeding two years (three or more felony drug conv.) |
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| 3. REPEAT DRIVING UNDER THE INFLUENCE (§ 6105(c)(3))                    |
|    - Three or more separate DUI convictions within a 5-year period      |
+-------------------------------------------------------------------------+
| 4. INVOLUNTARY MENTAL HEALTH COMMITMENTS (§ 6105(c)(4))                 |
|    - Involuntary inpatient commitment under 50 P.S. §§ 7302, 7303, 7304  |
|    - Formal adjudication of mental incompetence or insanity             |
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| 5. PROTECTION FROM ABUSE (PFA) ORDERS (§ 6105(c)(6))                    |
|    - Active final PFA court order ordering weapon relinquishment        |
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| 6. FUGITIVES FROM JUSTICE & ILLEGAL ALIENS (§ 6105(c)(1), (c)(5))       |
|    - Active arrest warrants; unlawful presence in the United States     |
+-------------------------------------------------------------------------+

Involuntary Mental Health Commitments (50 P.S. § 7302)

Under the Pennsylvania Mental Health Procedures Act of 1976 (50 P.S. §§ 7301–7306), emergency involuntary civil commitments are handled under three distinct sections:

  • Section 302 (50 P.S. § 7302): Involuntary emergency examination and treatment for up to 120 hours initiated upon physician certification or county mental health warrant.
  • Section 303 (50 P.S. § 7303): Extended court-ordered involuntary treatment up to 20 days.
  • Section 304 (50 P.S. § 7304): Court-ordered involuntary inpatient treatment up to 90 days.

Critical Legal Rule: Any completed involuntary commitment under Section 302, 303, or 304 results in an immediate, permanent statutory firearm disability under 18 Pa.C.S. § 6105(c)(4) and federal law (18 U.S.C. § 922(g)(4)). An individual subject to a 302 commitment cannot obtain an LTCF or Act 235 certification unless the record is formally expunged or rights are restored by an order of the county Court of Common Pleas under 18 Pa.C.S. § 6105(f).

Protection From Abuse (PFA) Orders (§ 6105(c)(6))

Under Pennsylvania's Protection From Abuse Act (23 Pa.C.S. Chapter 61), when a court enters a final protection order after a hearing (or a temporary order ordering weapon relinquishment):

  • The defendant must surrender all firearms, weapons, and ammunition to the sheriff or police department within 24 hours.
  • Possession of a firearm while subject to a qualifying final PFA order constitutes a direct violation of § 6105(c)(6), graded as a Felony of the 2nd Degree (F2) or Misdemeanor of the 1st Degree (M1).

Total State Preemption (18 Pa.C.S. § 6120)

To ensure uniformity of criminal law across all 67 Pennsylvania counties and more than 2,500 municipalities, the Pennsylvania General Assembly enacted 18 Pa.C.S. § 6120 (Limitation on the Regulation of Firearms and Ammunition).

18 Pa.C.S. § 6120(a) General Rule:
"No county, municipality or township may in any manner regulate the lawful
ownership, possession, transfer or transportation of firearms, ammunition
or ammunition components when carried or transported for purposes not
prohibited by the laws of this Commonwealth."

Legal Impact of State Preemption

  • Complete Field Occupation: The Pennsylvania Supreme Court has repeatedly affirmed (Ortiz v. Commonwealth, Clarke v. House of Representatives) that the state legislature occupies the entire field of firearms regulation.
  • Local Ordinances Invalid: Local cities (including Philadelphia, Pittsburgh, Allentown, and Erie) cannot enact local assault weapon bans, magazine capacity restrictions, mandatory gun lock ordinances, municipal registration schemes, or park carry bans.
  • Significance for Security Officers: Armed security personnel operate under one single, uniform set of state firearm laws throughout Pennsylvania, rather than facing a conflicting patchwork of municipal rules.

Open Carry vs. Concealed Carry in Pennsylvania

Pennsylvania law distinguishes sharply between open carry on foot and concealed or vehicular carry:

Carry ModeLegal Status Across 66 PA CountiesLegal Status in Philadelphia (1st Class City)
Open Carry on FootLawful without a permit for non-prohibited individuals (age 18+)Unlawful without an active LTCF (18 Pa.C.S. § 6108)
Concealed Carry on FootRequires active LTCF or statutory exception (§ 6106)Requires active LTCF or statutory exception (§ 6108)
In a Vehicle (Open or Concealed)Requires active LTCF or statutory exception (§ 6106)Requires active LTCF or statutory exception (§ 6108)
On Private Property (Owned/Leased)Lawful without a permit (home or fixed place of business)Lawful without a permit (home or fixed place of business)

Key Principle: While open carry on foot is lawful without a license in 66 counties, the moment an individual steps into a motor vehicle, the firearm is legally treated as "concealed/transported" under 18 Pa.C.S. § 6106, requiring an LTCF or a specific statutory exception.


Cities of the First Class Rule (Philadelphia - 18 Pa.C.S. § 6108)

Pennsylvania classifies cities by population. Under Pennsylvania statute, a City of the First Class is defined as any city with a population of one million or more. Philadelphia is the only City of the First Class in the Commonwealth.

Under 18 Pa.C.S. § 6108 (Carrying Firearms on Public Streets or Public Property in Philadelphia):

"No person shall carry a firearm, rifle or shotgun at any time upon the public
streets or upon any public property in a city of the first class unless:
  (1) such person is licensed to carry a firearm; or
  (2) such person is exempt from licensing under section 6106(b) of this title."

Operational Reality in Philadelphia

  1. No Permitless Open Carry: In Philadelphia, you cannot openly carry a firearm on public sidewalks, streets, parks, or public transit without an active Pennsylvania LTCF (or recognized reciprocal permit).
  2. Applies to Long Guns: Section 6108 explicitly covers firearms, rifles, and shotguns.
  3. Strict Criminal Penalty: Violating § 6108 is graded as a Misdemeanor of the 1st Degree (M1).

Comprehensive Summary Table: UFA Core Statutory Provisions

StatutePrimary Title / TopicKey Legal RuleGrading for Violation
18 Pa.C.S. § 6102DefinitionsDefines "Firearm" by barrel length (<15" handgun, <18" shotgun, <16" rifle, <26" overall)Statutory standard
18 Pa.C.S. § 6105Persons Not to PossessBars felons, 3x DUI in 5 yrs, 3x drug felons, PFA respondents, and 302 mental health commitmentsFelony 2nd Degree (F2) or Misdemeanor 1st Degree (M1)
18 Pa.C.S. § 6106Carrying Without a LicenseProhibits concealed carry on person or inside vehicle without LTCF; establishes (b) exceptionsFelony 3rd Degree (F3) / Misdemeanor 1st Degree (M1)
18 Pa.C.S. § 6108Carry in PhiladelphiaMandates LTCF for ALL carry (open or concealed) on public streets/property in 1st Class CitiesMisdemeanor 1st Degree (M1)
18 Pa.C.S. § 6109Licenses to CarryEstablishes county sheriff shall-issue licensing framework, 5-year term, and PICS checkAdministrative / Revocation
18 Pa.C.S. § 6120State PreemptionDenies municipal authority to regulate firearms, magazines, or ammunition statewideVoid ab initio / Civil Injunction

Scenario: The Open Carry in Philadelphia vs. Pittsburgh Trap

Scenario: Officer Jamal is an Act 235 certified guard who lives in Allegheny County (Pittsburgh). On weekends when he is off duty, Jamal openly carries his personal Glock 19 in an outside-the-waistband holster while walking through downtown Pittsburgh, knowing that open carry without an LTCF is lawful in Allegheny County. Jamal travels to Philadelphia for a weekend vacation. Believing Pennsylvania law is identical statewide, Jamal openly carries his Glock 19 on a public sidewalk near Center City Philadelphia without holding an LTCF.

Analysis: While Jamal's open carry was lawful in Pittsburgh (a City of the Second Class), it is a criminal offense in Philadelphia under 18 Pa.C.S. § 6108. In Cities of the First Class (Philadelphia), all carry on public streets—whether open or concealed—requires an active License to Carry Firearms. Furthermore, Jamal's Act 235 card does not exempt him because he is on personal vacation, outside the performance of security duties. Jamal is subject to arrest and prosecution for an M1 misdemeanor.


Exam Tip: Barrel Length Thresholds and Philadelphia Rules

  • § 6102 Dimensions to Memorize: Handgun barrel < 15 inches, Shotgun barrel < 18 inches, Rifle barrel < 16 inches, Overall length < 26 inches.
  • Section 6108 Philadelphia Rule: Remember that Philadelphia is the ONLY city in Pennsylvania where open carry on foot requires a license (LTCF). In all other 66 counties, open carry on foot requires no permit.
Test Your Knowledge

Under the Pennsylvania Uniform Firearms Act (18 Pa.C.S. § 6102), which of the following dimensional criteria defines a "firearm" for state licensing and carry regulations?

A
B
C
D
Test Your Knowledge

Under 18 Pa.C.S. § 6105 (Persons Not to Possess Firearms), which of the following scenarios results in an immediate statutory prohibition against possessing, using, or carrying firearms in Pennsylvania?

A
B
C
D
Test Your Knowledge

How does Pennsylvania law regulate the open carry of firearms on public streets and public property in Philadelphia (a City of the First Class) compared to the rest of the Commonwealth?

A
B
C
D