3D Printed Ghost Guns and Illegal Firearms in Pennsylvania
Recently, “ghost guns” have been in the news. Luigi Mangione has been accused of killing Brian Thompson, the CEO of UnitedHealthcare in December 2024 using a 3d printed gun, otherwise known as a “ghost gun”. While he awaits his day in court, let’s take a deeper dive into this type of weapon and the laws surrounding illegal firearms.
Understanding how Pennsylvania law treats ghost guns, and what risks come with possessing or building one, is crucial for anyone interested in firearm ownership, hobby gunsmithing, or criminal defense. If you find yourself in need of a good defense lawyer, give us a call for a free consultation.
What is a Ghost Gun?
A “ghost gun” refers to any firearm that lacks a serial number or identifying markings. Typically, these weapons are assembled from:
- 80% lowers or unfinished receivers – Partially completed gun frames that can be finished at home using tools or milling machines.
- Gun kits – Often marketed as “build-your-own gun” or “DIY firearm kits.” These may include all components except the serialized receiver.
- 3D-printed guns and firearms – Produced with downloadable blueprints and 3D printing technology.
These products are not manufactured by licensed gun makers, thus these weapons fall outside the scope of standard federal firearm regulations.
For a free legal consultation, call 215.515.3360
Federal Laws on Ghost Guns
The Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) defines a firearm as any weapon that can expel a projectile by the action of an explosive. Under federal law, serialized firearms must be manufactured by licensed dealers (FFLs), who are required to maintain transaction records and conduct background checks.
In 2022, the ATF Final Rule 2021R-05F expanded the definition of “firearm” to include unfinished frames and receivers that can be readily converted into working guns. This rule effectively closed many loopholes that allowed buyers to order near-complete gun kits online without oversight.
Under the updated federal framework for illegal firearms:
- Ghost gun kits must now be treated as firearms for sales and transfer purposes.
- Licensed dealers must serialize unfinished frames and perform background checks before transferring them.
- Private individuals cannot legally sell or transfer ghost guns without proper serialization.
Failure to comply with these regulations can result in federal felony charges, including illegal firearm possession or unlawful manufacturing under 18 U.S.C. § 922.
Pennsylvania’s Laws on Ghost Guns
While Pennsylvania has not yet passed a stand-alone “Ghost Gun Ban,” several overlapping laws and executive actions make the possession or creation of unserialized firearms increasingly risky.
The Pennsylvania State Police (PSP) Directive on Firearms
In 2019, the Pennsylvania State Police issued a directive classifying unfinished receivers and partially completed frames as firearms under state law if they can be readily converted into working weapons. This means:
- Buying or selling 80% lowers may require background checks.
- Individuals who assemble these illegal firearms could be subject to unlicensed manufacturing charges.
Philadelphia’s Local Firearm Ordinances
Philadelphia has taken a particularly strict stance. In 2021, the city passed an ordinance banning the possession, sale, or transfer of unfinished gun frames and receivers.
Violating the ordinance can lead to criminal penalties and weapon forfeiture. Even though state preemption laws typically limit local firearm regulation, Philadelphia’s ghost gun ban has been upheld in some contexts as a public safety measure targeting untraceable weapons.
Other Existing Firearm Laws That Apply
Even without a specific ghost gun statute, individuals caught with an unserialized firearm in Pennsylvania can still face charges under existing laws:
- Possession of a Firearm Without a License (18 Pa.C.S. § 6106)
- Possession of a Firearm by a Prohibited Person (18 Pa.C.S. § 6105)
- Unlawful Transfer or Sale of Firearms (18 Pa.C.S. § 6111)
- Alteration or Obliteration of Serial Numbers (18 Pa.C.S. § 6117)
These charges carry significant penalties, including mandatory prison terms for violations. We represent clients whose reputations, well-being, and futures are on the line. Illegal firearms charges can be stressful and confusing. Contact a good defense attorney that knows your rights and can defend your honor.
Why Ghost Guns Are a Legal Gray Area
The main issue with ghost guns is traceability. Without serial numbers or paper trails:
- Police cannot trace ghost guns and weapons used in crimes.
- Prosecutors cannot easily establish ghost gun ownership or transfer history.
- Defendants may face heightened suspicion for possession, especially if a ghost gun is linked to a violent crime.
Federal courts have attempted to balance private gun-building and gunsmithing rights against the need for regulation. Some gun rights advocates argue that individuals have long held the right to manufacture their own firearms for personal use, a practice that predates modern gun laws.
But as ghost guns become easier to produce and harder to detect, law enforcement agencies are tightening enforcement, especially in urban centers like Philadelphia, Pittsburgh, and Harrisburg.
Penalties for Possession or Manufacturing of Illegal Firearms or Ghost Guns
Although Pennsylvania doesn’t have a specific “ghost gun” penalty, these weapons often lead to multiple overlapping charges. Depending on the situation, individuals could face:
Felony Firearm Possession
Possessing an unserialized gun without a valid license or in a prohibited location (like a vehicle or public building) may lead to felony charges under § 6106. Penalties can include up to 7 years in prison and $15,000 in fines.
Federal Firearm Manufacturing Violations
Under federal law, building and selling ghost guns without a license can result in up to 10 years in prison under 18 U.S.C. § 922(a)(1)(A).
Tampering or Alteration Charges
If an individual removes or fails to apply a required serial number, they could face state and federal tampering charges, which carry additional fines and imprisonment.
Aggravating Circumstances
If the firearm is used in another offense (like robbery, assault, or drug trafficking), additional penalties and mandatory minimum sentences may apply.
How Law Enforcement Is Responding to the Rise of Ghost Guns
Law enforcement agencies across Pennsylvania have reported a sharp increase in ghost gun recoveries. In Philadelphia alone, over 600 ghost guns were seized in 2023 — a 400% increase from just a few years prior.
To address the issue:
- The ATF has partnered with local police departments to track online kit sales.
- Task forces have been formed to investigate gun kit suppliers.
- Evidence handling procedures are being updated to ensure traceability in prosecutions.
For individuals, this means any unserialized weapon is now subject to heightened scrutiny and potential firearm seizure.
What Happens if You get Caught with a Ghost Gun?
If you’re facing a charge involving a ghost gun or 3D printed gun, the stakes are high. However, several potential legal defense tactics that may apply, depending on the facts:
- Lack of Knowledge: The accused didn’t know the weapon was considered a “firearm” under the law.
- Unlawful Search and Seizure: If the firearm was found during an illegal traffic stop or home search, evidence may be suppressed.
- Non-Functioning Firearm: The alleged weapon was unfinished or incapable of firing.
- Federal Preemption Issues: In some cases, defense attorneys can argue that state enforcement conflicts with federal definitions or rights.
Because Pennsylvania’s ghost gun laws intersect with both state statutes and federal regulations, having an attorney experienced in both systems is crucial for the best defense support you can get.
What You Should Do If You Own or Inherited a Ghost Gun
If you currently own or have inherited an unserialized firearm, you should:
- Avoid carrying or transporting it publicly.
- Consult an attorney before attempting to sell, transfer, or serialize it.
- Never alter or add serial markings on your own; improper engraving could lead to criminal charges.
- Stay updated on legal changes, as enforcement standards are shifting rapidly.
Attempting to fix the issue without legal guidance could make matters worse. In some cases, a qualified defense attorney may help you lawfully serialize or surrender the weapon without criminal exposure.
Know the Risks Before You Build or Buy a Ghost Gun
Ghost guns may seem like a legal loophole for personal firearm ownership, but in Pennsylvania, the landscape has changed dramatically. What once was a gray area now carries serious criminal risk.
Even if you never intend to use the weapon unlawfully, possession of an unserialized or homemade gun can result in federal or state prosecution and potentially years in prison.
If you’re facing gun-related charges or have questions about the legality of a firearm, contact the Law Office of Marni Jo Snyder today. Our experienced Philadelphia criminal defense attorneys understand the complexities of Pennsylvania gun laws and can help protect your rights every step of the way.
To learn more about firearm laws, read more at:
- Can you Buy a Gun with a Misdemeanor Drug Charge in Pennsylvania?
- Can Felons Possess Firearms in Pennsylvania?
- Defending Against Shooting Charges
- Is it Illegal to Carry an Unregistered Firearm in Pennsylvania?
Are you or a loved one charged with a firearm offense such as Illegal possession ? Schedule your free consultation with our proven criminal defense attorneys at the Law Offices of M.J. Snyder, LLC by calling 215.515.3360 or contacting us online today. We can thoroughly investigate your case, explain your options, and fight for the best possible outcome.
