Yes, gun suppressors are legal in Oregon, provided they are registered under federal law. Oregon Revised Statute 166.272 makes possession of a firearms silencer a Class B felony, but the same statute shields anyone whose suppressor is registered under the National Firearms Act. Follow the federal process, keep your paperwork, and state law will not stand in your way.
What Oregon Law Actually Says
ORS 166.272 reads like a flat ban on silencers, and on its face it is. The statute then carves out two protections for registered owners. A police officer cannot arrest or charge you if you have documentation on hand showing the suppressor is registered under federal law. And even if charges are filed, federal registration is a complete affirmative defense at trial. A conviction under ORS 166.272 is a Class B felony, which in Oregon can carry substantial prison time and fines.1Oregon State Legislature. Oregon Revised Statutes 166.272 – Unlawful Possession of Machine Guns, Certain Short-Barreled Firearms and Firearms Silencers
The line between legal and felonious in Oregon is the federal paperwork. Nothing else.
The Federal Registration You Have to Complete
Every suppressor in the United States is regulated under the National Firearms Act of 1934. ATF requires each one to be entered in the National Firearms Registration and Transfer Record, and possessing an unregistered suppressor is a federal crime no matter what any state allows.2Bureau of Alcohol, Tobacco, Firearms and Explosives. National Firearms Act (NFA)
Buying From a Dealer
Most buyers go through a licensed dealer with a Special Occupational Tax status (often called a Class 3 dealer). You file ATF Form 4, the application for tax-paid transfer, and submit it with fingerprint cards, a passport-style photo, and a $200 tax payment. ATF has to approve the Form 4 before the dealer can hand over the suppressor, and a background check through the National Instant Criminal Background Check System runs as part of that approval. If receipt or possession would violate federal, state, or local law, the application gets denied.3Bureau of Alcohol, Tobacco, Firearms and Explosives. NFA Handbook – Chapter 9 – Transfers of NFA Firearms
Making Your Own
If you want to build a suppressor yourself, you file ATF Form 1 and pay the same $200 tax before construction begins.4Bureau of Alcohol, Tobacco, Firearms and Explosives. eForms Applications Building without an approved Form 1 carries the same federal penalties as possessing an unregistered suppressor.
Age
You must be at least 21 to buy a suppressor from a licensed dealer. Someone 18 or older can acquire one through a non-dealer transfer or hold one as a trust beneficiary, though state rules can layer on top.
Who Cannot Own One
Federal law bars certain people from possessing any firearm, and suppressors count. Under 18 U.S.C. § 922(g), you are prohibited if you have a felony conviction (any crime punishable by more than a year of imprisonment), are a fugitive from justice, use or are addicted to controlled substances, have been adjudicated mentally defective or committed to a mental institution, are an undocumented immigrant, were dishonorably discharged from the military, have renounced U.S. citizenship, are subject to a qualifying domestic restraining order, or have a misdemeanor domestic violence conviction. Anyone under indictment for a crime punishable by more than a year of imprisonment is also barred from receiving firearms or ammunition.5Bureau of Alcohol, Tobacco, Firearms and Explosives. Identify Prohibited Persons The Form 4 background check screens for all of these.
Register to Yourself or to a Trust
You can register a suppressor to yourself as an individual or to an NFA trust. The distinction matters if anyone else in your household will ever touch it.
Registered to you personally, the suppressor is yours alone. You must be physically present whenever anyone else handles it. A spouse with access to the safe or a friend using it at the range without you nearby creates a constructive possession problem for that person, because they would be in possession of an NFA item not registered to them.
An NFA trust names co-trustees who can independently possess and use the trust’s suppressors, and it names beneficiaries who inherit those items outside of probate. Each co-trustee identified as a responsible person submits fingerprints, a photograph, and ATF Form 5320.23, and each goes through the same background check.6Bureau of Alcohol, Tobacco, Firearms and Explosives. National Firearms Act (NFA) Responsible Person Questionnaire – ATF Form 5320.23 Individual applications are simpler and move faster. Trust applications take more setup and longer approval but give you shared-use and estate-planning flexibility.
Cost and Wait Times
As of early 2026, ATF is processing electronic Form 4 applications for individuals in roughly 10 days on average, with a median of about 12 days. Trust eForm 4 applications are averaging around 26 days.7Bureau of Alcohol, Tobacco, Firearms and Explosives. Current Processing Times Volume and case-by-case research can push those numbers up.
Budget for the suppressor itself (typically $300 to $1,500), the $200 tax stamp, and a dealer transfer fee that commonly runs $25 to $100. Going the trust route adds the cost of drafting the trust document.
Using a Suppressor in Oregon
Keep Proof on You
Federal regulation requires you to keep the approved Form 4 and produce it for any ATF officer on request.8ATF eRegulations. 27 CFR 479.86 In Oregon the stakes are higher than at the federal level: because unregistered possession is a felony under ORS 166.272, having documentation with you is what prevents an on-the-spot arrest.1Oregon State Legislature. Oregon Revised Statutes 166.272 – Unlawful Possession of Machine Guns, Certain Short-Barreled Firearms and Firearms Silencers A phone photo or a laminated copy saves wear on the original.
Hunting
Oregon has no wildlife regulation restricting the use of suppressors while hunting. The Oregon State Police Fish and Wildlife Division confirms hunting with a suppressor is legal so long as you hold the necessary federal permits.9Oregon.gov. Know the Rules – Fish and Wildlife Division Season rules, weapon-type restrictions for specific game, and local discharge ordinances apply the same way they would for any unsuppressed firearm.
Crossing State Lines
Suppressors do not require ATF Form 5320.20 approval for interstate transport. Federal law at 18 U.S.C. § 922(a)(4) requires prior ATF authorization to move machine guns, short-barreled rifles, short-barreled shotguns, and destructive devices across state lines, but silencers are not on that list.10Office of the Law Revision Counsel. 18 USC 922
You can only take a suppressor into a state where civilian suppressor possession is legal. Eight states currently ban it entirely. Check the destination before you travel, and if you move out of Oregon permanently, update the address tied to your NFA registration.
Penalties If You Get It Wrong
The consequences of unregistered possession are steep at both levels.
Federally, violations of the NFA carry a maximum sentence of 10 years in prison. The original statute set the maximum fine at $10,000, but an amendment to federal sentencing law raised the ceiling to $250,000 for an individual.11Bureau of Alcohol, Tobacco, Firearms and Explosives. NFA Handbook – Chapter 15 – Penalties and Sanctions
In Oregon, unregistered possession is a Class B felony, and a federal case and a state case are not mutually exclusive.1Oregon State Legislature. Oregon Revised Statutes 166.272 – Unlawful Possession of Machine Guns, Certain Short-Barreled Firearms and Firearms Silencers Building a suppressor without an approved Form 1, completing a private sale outside the Form 4 process, or letting a prohibited person access your suppressor can all trigger these penalties. There is no mechanism under current law to retroactively register a suppressor you already possess, so a mistake now cannot be corrected later with paperwork.2Bureau of Alcohol, Tobacco, Firearms and Explosives. National Firearms Act (NFA)