Yes, ghost guns are illegal in Oregon. Since September 1, 2024, state law bans possessing, selling, or transferring any firearm that lacks a serial number imprinted by a federally licensed manufacturer, importer, dealer, or gunsmith.1Oregon Public Law. ORS 166.266 – Sale, Transfer or Possession of Firearm Without Serial Number A first violation is a Class B violation with a fine of up to $1,000, and the penalties climb quickly from there. If you already own an unserialized firearm, you can keep it legally by taking it to a federally licensed dealer to have a serial number engraved on it.
What Counts as a Ghost Gun in Oregon
ORS 166.266 reaches any firearm without a serial number applied by a federal licensee. It also reaches the parts that make one. Oregon defines an “unfinished frame or receiver” as any forging, casting, 3D-printed body, or similar item that is either designed to be completed into a working frame or receiver, or marketed and sold for that purpose.2Oregon State Legislature. Oregon Revised Statutes Chapter 166 – Section 166.210 Definitions That language covers “80% receivers,” polymer printed frames, and the parts kits sold around them.
If a firearm or component in your possession fits either description and does not qualify for an exemption below, it is covered by the ban.
Penalties for Possessing or Transferring a Ghost Gun
Oregon’s penalty structure escalates sharply with each prior conviction. Prior convictions under the state’s related statutes — unserialized firearms, unfinished frames, and undetectable firearms — all count toward that escalation.
- First offense: Class B violation, fine up to $1,000.1Oregon Public Law. ORS 166.266 – Sale, Transfer or Possession of Firearm Without Serial Number
- Second offense (one prior conviction): Class A misdemeanor, up to 364 days in jail, a fine of up to $6,250, or both.1Oregon Public Law. ORS 166.266 – Sale, Transfer or Possession of Firearm Without Serial Number
- Third offense (two or more prior convictions): Class B felony, up to 10 years in prison, a fine of up to $250,000, or both.3Oregon Department of Justice. Oregon State Law Regulating Ghost Guns and Undetectable Firearms
A conviction at any tier triggers forfeiture of the firearm involved.1Oregon Public Law. ORS 166.266 – Sale, Transfer or Possession of Firearm Without Serial Number The jump from a civil fine to potential jail time after a single prior conviction is where the real risk lives.
Firearms That Are Exempt
Not every unserialized firearm is covered. Oregon exempts:
- Antique firearms.
- Any firearm manufactured before October 22, 1968, when the federal Gun Control Act took effect and serial numbers became a federal requirement.
- Firearms that have been rendered permanently inoperable.
- Federally licensed manufacturers, importers, and dealers possessing unserialized firearms in the course of their business.
- A gunsmith with a federal firearms license who takes possession of an unserialized firearm specifically to imprint a serial number on it.1Oregon Public Law. ORS 166.266 – Sale, Transfer or Possession of Firearm Without Serial Number
The pre-1968 carve-out is the one most owners will actually use. An inherited rifle or handgun made before that date that never carried a serial number does not need one now. Unfinished frame or receiver components designed for antique firearms also fall outside the statutory definition entirely.2Oregon State Legislature. Oregon Revised Statutes Chapter 166 – Section 166.210 Definitions
How to Legally Keep an Unserialized Firearm You Already Own
If you own a ghost gun and want to stay on the right side of the law, take it to a federally licensed firearms dealer and have a serial number engraved on it. The Oregon Department of Justice directs owners to use an FFL for serialization in compliance with federal standards.3Oregon Department of Justice. Oregon State Law Regulating Ghost Guns and Undetectable Firearms The serial number goes on the frame or lower receiver.
Not every FFL offers engraving. Call ahead. The ATF publishes a searchable list of licensed dealers in Oregon on its website.
One point trips people up. Federal law lets you build a firearm for personal use without serializing it, as long as you are not in the business of making guns for sale.4Bureau of Alcohol, Tobacco, Firearms and Explosives. Privately Made Firearms Oregon does not. Inside Oregon, a self-built firearm still needs a serial number, and the federal permission to skip that step does not override state law.
A related statute, ORS 166.265, separately prohibits manufacturing, importing, selling, or transferring undetectable firearms — weapons that cannot be detected by metal detectors or standard security imaging, such as fully polymer 3D-printed guns. A conviction under that statute counts as a prior conviction for the ghost gun penalty tiers, meaning a second offense of any kind lands in misdemeanor territory from the start.1Oregon Public Law. ORS 166.266 – Sale, Transfer or Possession of Firearm Without Serial Number