Oregon SBR Laws: Registration, Penalties, and Measure 114

Oregon SBR laws allow residents to own a short-barreled rifle, but only if the firearm is registered under the federal National Firearms Act. Possessing an unregistered one violates ORS 166.272, a Class B felony that carries up to 10 years in prison and a $250,000 fine.¹² Keep your federal paperwork current and in your possession, and you stay on the right side of both Oregon and federal law.

What Counts as a Short-Barreled Rifle in Oregon

Under ORS 166.210, a short-barreled rifle is a rifle with one or more barrels shorter than 16 inches, or any weapon made from a rifle that has an overall length under 26 inches.³ That tracks the federal definition in 18 U.S.C. § 921.⁴

The second half of the definition matters most for people modifying a rifle they already own. If a cut or a reconfiguration drops the overall length below 26 inches, the rifle becomes an SBR even if the barrel itself is still 16 inches or longer. The classification is about measurement, not intent.

Penalties for an Unregistered SBR

ORS 166.272 makes it a crime to knowingly possess a short-barreled rifle, charged as a Class B felony.¹ The maximum exposure is 10 years in prison and a fine of up to $250,000.²

Here’s the detail that trips people up. Federal NFA registration isn’t a blanket exemption from the Oregon statute; it’s an affirmative defense. Oregon law says a peace officer cannot arrest or charge you if you have NFA registration documents in your immediate possession.¹ If you get charged and can’t produce the paperwork, you carry the burden of proving compliance. Carry a copy with the firearm. Don’t leave it in a drawer at home.

Federal penalties run on a separate track. Possession of an unregistered NFA firearm violates 26 U.S.C. § 5871, which carries up to 10 years in federal prison and a fine of up to $10,000.⁵ State and federal charges can stack.

Who Cannot Own an SBR

Even with proper registration, 18 U.S.C. § 922(g) bars certain people from possessing any firearm, SBR included:⁶

Anyone convicted of a crime punishable by more than one year of imprisonment
Fugitives from justice
Unlawful users of, or anyone addicted to, a controlled substance
Anyone adjudicated as mentally defective or committed to a mental institution
Anyone convicted of a misdemeanor crime of domestic violence or subject to a qualifying protective order
Anyone discharged from the military under dishonorable conditions
Anyone who has renounced U.S. citizenship
Anyone unlawfully in the United States

Anyone under indictment for a crime punishable by more than one year is also prohibited from receiving firearms. The ATF will deny the application if any of these apply, and submitting a false application is itself a federal crime.

Registering With the ATF: Form 1 or Form 4

Which form you file depends on whether you’re making the SBR or buying one.

Form 1 (ATF Form 5320.1) is for making an NFA firearm yourself, whether that means shortening a barrel on a rifle you already own or assembling one from parts. File it and wait for approval before doing any work. Building the firearm before approval arrives is a federal crime.⁷

Form 4 (ATF Form 5320.4) is for transferring an existing NFA firearm from a licensed dealer to you. The dealer submits it on your behalf.⁸

As of January 1, 2026, the $200 making and transfer tax that previously applied to SBRs has been eliminated. Only machineguns and destructive devices still carry the traditional $200 tax stamp.

Both forms require the firearm’s serial number, manufacturer name, barrel length, and overall length. Individual applicants also submit two passport-style photographs (2×2 inches) and fingerprints. Fingerprints can be submitted on physical FD-258 cards or, when filing electronically, as digital EFT files through the eForms portal.⁹

Engraving if You Build Your Own

An SBR made under Form 1 must carry identifying markings on the frame or receiver. Under 27 CFR 478.92, markings must be at least .003 inches deep, with the serial number no smaller than 1/16 of an inch.¹⁰ You need your name, city, and state as the maker, plus the serial number, caliber, and model designation. The markings must be engraved, stamped, or cast so they can’t easily be removed or altered.¹¹ Professional laser engraving typically runs $25 to $125 depending on the shop and the receiver material. Have the work done before taking possession of the finished SBR.

Should You Use a Gun Trust?

Instead of registering as an individual, you can register the SBR to a gun trust, a legal entity built to hold NFA firearms. The main advantage is shared access. Multiple trustees named in the trust can legally possess and use the firearm, while individual registration limits possession to the registered owner alone. Trusts also simplify inheritance: when the original owner dies, firearms in the trust pass to designated beneficiaries without probate.

The tradeoff is paperwork. Under ATF Rule 41F, every “responsible person” associated with the trust, meaning trustees, settlors, and any beneficiary with authority over the firearms, must individually submit fingerprints, a photograph, and ATF Form 5320.23 with each application.¹² A trust with five responsible persons means five sets of fingerprints and photos per application. Professionally drafted NFA trusts typically cost $60 to $100.

After You File

Form 1 and Form 4 can go in through the ATF’s eForms portal or by mailing paper forms to the NFA Division.¹³ Electronic filing is faster and lets you track application status online.

A copy of the application also goes to the chief law enforcement officer in your area, usually the local sheriff or police chief. This is notification, not permission. The CLEO has no authority to approve or deny the application.¹² The ATF has proposed removing the CLEO notification requirement, but as of mid-2026 it remains in the rulemaking stage and notification is still required.¹⁴

Processing times have fallen in recent years. The ATF publishes current averages for each form type on its website.¹⁵ Once approved, you’ll receive the form back with a tax stamp, digitally through eForms or by mail for paper submissions. That document is your legal authority to possess the SBR.

Carrying, Storing, and Traveling With Your SBR

Carry a copy of your approved registration with the firearm whenever you transport or use it. This is what protects you from arrest under ORS 166.272, since Oregon law bars officers from charging you if you have registration documentation in your immediate possession.¹ A digital copy on your phone works for practical purposes; a printed copy as backup is wise.

Taking the firearm out of Oregon is a separate process. Before it leaves the state, you need prior ATF approval through Form 5320.20. This applies to short trips and permanent moves alike. The form can be submitted electronically through eForms.¹³ Each approval covers a specific window; if plans change and you won’t bring the firearm back before the authorized date expires, file a new Form 5320.20.¹⁶ Confirm the destination state permits SBR possession before you go; not every state does, and federal paperwork won’t shield you from state-level liability.

Store the SBR securely when it’s not in use. If an unauthorized person has ready access to the firearm, you expose yourself to a constructive-possession argument, the theory that someone effectively possesses a weapon without physically holding it. A locked safe or container that only you (or the trust’s authorized persons) can open removes that risk.

Local Rules and Measure 114

Oregon’s firearms preemption statute, ORS 166.170, reserves authority to regulate firearms exclusively to the state legislature. No city or county can pass ordinances restricting SBR ownership, sale, or transportation beyond what state law already provides, and any local ordinance that tries is void.¹⁷ The rules in this article apply uniformly across the state.

Measure 114, the voter-approved law requiring a permit to acquire firearms and restricting magazine capacity, has had a complicated legal path. The Oregon Court of Appeals ruled the law constitutional in March 2025, and the 2026 legislative session introduced HB 4145, which would delay enforcement until January 1, 2028. The law’s interaction with NFA firearms is still an open question. If the permit-to-purchase requirement takes effect, it could add a state-level step before any firearm acquisition, including NFA items. Prospective SBR buyers should watch this closely.

1
Oregon State Legislature. Oregon Code 166.272 – Unlawful Possession of Machine Guns, Certain Short-Barreled Firearms and Firearms Silencers
2
Oregon State Legislature. Oregon Revised Statutes Chapter 161 – General Provisions
3
Oregon Revised Statutes. Oregon Code 166.210 – Definitions
4
Office of the Law Revision Counsel. 18 USC 921 – Definitions
5
Office of the Law Revision Counsel. 26 USC 5871 – Penalties
6
Bureau of Alcohol, Tobacco, Firearms and Explosives. Identify Prohibited Persons
7
Bureau of Alcohol, Tobacco, Firearms and Explosives. Application to Make and Register NFA Firearm, ATF Form 5320.1 (Form 1)
8
Bureau of Alcohol, Tobacco, Firearms and Explosives. Firearms Forms
9
Bureau of Alcohol, Tobacco, Firearms and Explosives. NFA Form 1 Submission External Guidance
10
eCFR. 27 CFR 478.92 – Firearms – Markings
11
Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF). Identification of Firearms (27 CFR 479.102)
12
Bureau of Alcohol, Tobacco, Firearms and Explosives. Background Checks for Responsible Persons (Final Rule 41F)
13
Bureau of Alcohol, Tobacco, Firearms and Explosives. eForms Applications
14
Bureau of Alcohol, Tobacco, Firearms and Explosives. Reduce Burden
15
Bureau of Alcohol, Tobacco, Firearms and Explosives. Current Processing Times
16
Bureau of Alcohol, Tobacco, Firearms and Explosives. ATF Form 5320.20 – Application to Transport Interstate or to Temporarily Export Certain National Firearms Act (NFA) Firearms
17
Oregon Revised Statutes. ORS 166.170 – State Preemption