Oregon gun laws and California gun laws diverge sharply almost everywhere they touch. Both states run background checks on every sale, including private transfers, but that is roughly where the similarity ends. California imposes a 10-day waiting period, bans assault weapons and standard-capacity magazines, requires a background check for every box of ammunition, and maintains a statewide firearm database. Oregon has no waiting period, no assault weapon ban, no magazine limit currently in force, and no ammunition background checks. If you are moving between the two states, carrying across the border, or just trying to understand what changes when you cross the state line, the differences are large enough to turn a legal Oregon rifle into a California felony.
Buying a Gun
California sets the purchase age at 21 for any firearm, with a narrow carve-out for active military, law enforcement, and licensed hunters 18 and older buying long guns other than semiautomatic rifles. Before you can buy, you need a Firearm Safety Certificate, which requires passing a 30-question written test and paying $25. The certificate is good for five years.1State of California – Department of Justice – Office of the Attorney General. Frequently Asked Questions Every purchase then triggers a mandatory 10-day waiting period while the state processes a background check through the Dealer’s Record of Sale system.2State of California – Department of Justice – Office of the Attorney General. Frequently Asked Questions
Oregon follows the federal age floor: 18 for long guns, 21 for handguns. The Oregon State Police run every dealer sale through the Firearms Instant Check System.3Oregon State Police. Firearms Instant Check System (FICS) There is no state waiting period and no state-issued safety certificate. Processing can slow during high-volume periods, but there is no built-in hold.
Oregon voters approved Measure 114 in 2022, which would add a permit-to-purchase requirement involving fingerprinting, safety training, and a background check. State courts have blocked the measure since before it took effect. The Oregon Supreme Court heard arguments in late 2025 but has not yet ruled, and recent legislation would push implementation to 2028 even if the measure survives.4Oregon State Legislature. Oregon Code 166.412 – Definitions; Firearms Transaction Record; Criminal History Record Check For now, Oregon’s purchase rules remain as described above.
Private Sales
Both states require background checks on private transfers, which puts them ahead of most states on this point. The mechanics differ.
In California, every private sale must be processed through a licensed firearms dealer, who treats it like a retail purchase: full background check, the 10-day waiting period, and all applicable fees. In Oregon, private sellers arrange the transfer through a licensed dealer or complete the deal at a gun show, and the State Police run the same instant check used for dealer sales.3Oregon State Police. Firearms Instant Check System (FICS) The main practical gap is time. Oregon’s check is instant; California’s waiting period applies no matter how fast the background check clears.
Concealed and Open Carry
Oregon is a shall-issue state. If you are at least 21, complete a handgun safety course, and pass a background check, the county sheriff must grant your Concealed Handgun License.5Oregon Public Law. Oregon Code ORS 166.291 – Issuance of Concealed Handgun License New application fees typically run around $115.
California was historically a may-issue state, where local sheriffs could deny applicants who failed to show “good cause.” After the U.S. Supreme Court struck down that standard in Bruen in 2022, California moved to objective eligibility criteria and layered on new restrictions through Senate Bill 2. Costs vary heavily by county, and training, fees, and processing can run from a few hundred dollars to well over a thousand. The state also designated a long list of “sensitive places” where concealed carry is prohibited even with a valid permit. A federal court blocked several of those categories, but as of early 2025 the Ninth Circuit allowed enforcement of roughly 20 sensitive-place categories, including schools, government buildings, bars, playgrounds, and airports.6State of California – Department of Justice – Office of the Attorney General. 2025-DLE-06 Additional Restrictions on CCW License Holders
Neither state honors the other’s permit. An Oregon CHL becomes meaningless the moment you cross into California, and the same applies in reverse. To carry concealed in both states, you need a permit from each.
Open carry is where the two states look almost opposite. California has prohibited the open carry of handguns in public since 2012. Under Penal Code 26350, carrying an exposed and unloaded handgun on your person in a public place within an incorporated city is a misdemeanor, and a separate statute covers long guns.7California Legislative Information. California Code PEN 26350 – Openly Carrying an Unloaded Handgun For practical purposes, open carry is unavailable in populated California.
Oregon allows open carry at the state level, but local rules complicate the picture. State preemption blocks most local firearm regulation, with an exception that lets cities and counties restrict carrying loaded firearms in public.8Oregon Public Law. ORS 166.170 – State Preemption Portland, for example, makes it unlawful to carry a loaded firearm in a public place.9Portland.gov. Portland City Code 14A.60 – Weapons and Explosives Open carry in rural Oregon is generally fine; walking into downtown Portland with a loaded rifle is not. Check the local ordinance before you carry.
What You Can Legally Own
Assault Weapons and the Handgun Roster
California runs one of the most detailed assault weapon bans in the country, using two overlapping tools. Penal Code 30510 lists specific prohibited models by name.10California Legislative Information. California Code PEN 30510 – Assault Weapons and .50 BMG Rifles Penal Code 30515 then defines assault weapons by features: a semiautomatic centerfire rifle with a detachable magazine qualifies if it also has a pistol grip, thumbhole stock, folding or telescoping stock, flash suppressor, forward pistol grip, or grenade launcher. Comparable feature tests apply to semiautomatic pistols and shotguns.11California Legislative Information. California Code PEN 30515 – Assault Weapon Characteristics Owning or selling a prohibited assault weapon is a felony.
California also limits which handguns dealers can sell through its Roster of Handguns Certified for Sale. A model must pass firing, safety, and drop tests to be listed, and dealers cannot sell models off the roster to the general public.12State of California – Department of Justice – Office of the Attorney General. Handguns Certified for Sale The roster has shrunk over time as the state added requirements no manufacturer has met, including microstamping.
Oregon has no assault weapon ban and no handgun roster. A rifle that would be a felony to possess in California can be purchased over the counter at an Oregon gun store.
Magazine Capacity
California caps magazine capacity at 10 rounds. Possession of a large-capacity magazine is an infraction or misdemeanor, and selling or importing one can bring up to a year in county jail or state prison.13California Legislative Information. California Code Penal Code PEN 32310 – Large-Capacity Magazines
Oregon’s Measure 114 would impose an identical 10-round limit and make violations a Class A misdemeanor, but that provision is blocked along with the rest of the measure.14Ballotpedia. Oregon Measure 114, Changes to Firearm Ownership and Purchase Requirements Initiative (2022) Until the courts rule, Oregon has no magazine capacity limit. A standard 30-round AR-15 magazine that is illegal to possess in California is legal in Oregon.
Buying Ammunition
This is the sharpest single difference between the two states. California treats ammunition purchases almost like firearm purchases. Every sale requires a background check through a licensed vendor.15California Legislative Information. California Code Penal Code PEN 30370 – Ammunition Authorization Program If your information already matches a record in the state’s Automated Firearms System, the check costs $1. If it doesn’t, you pay $19 for a one-time eligibility check.16California Department of Justice. 11 CCR 4300 – Regulations for Ammunition Purchases or Transfers The state records the transaction.
California also prohibits residents from bringing in ammunition purchased elsewhere. Any out-of-state ammo must be shipped to a licensed California ammunition vendor, who runs the background check before releasing it.17California Legislative Information. California Code Penal Code PEN 30314 – Importation of Ammunition Picking up a box in Nevada and driving it home to Sacramento is a misdemeanor.
Oregon requires none of this. You can buy ammunition at any retail store or online vendor without a background check. No state database tracks the purchase, and importing from other states is unrestricted.
Storage and Red Flag Orders
Oregon’s Senate Bill 554 requires owners to secure any firearm not under their direct control with a trigger lock, cable lock, locked container, or gun room. Leaving a handgun visible in an unattended vehicle also violates the law. A basic violation is a Class C violation. If a minor gains access and the owner knew or should have known they could, the penalty escalates to a Class A violation.18Oregon State Legislature. Oregon Senate Bill 554 – The Cindy Yuille and Steve Forsyth Act
California’s criminal storage law is harsher. Under Penal Code 25100, if you store a firearm where you know or should know a child or prohibited person is likely to access it, and that person obtains the gun and causes death or serious injury, you face felony charges carrying up to three years in state prison and a $10,000 fine.19California Legislative Information. California Penal Code – Criminal Storage of Firearm Lesser scenarios where a child accesses the gun without injury can still bring misdemeanor charges.
Both states have red flag laws. Oregon’s Extreme Risk Protection Order lets law enforcement or family and household members petition a court to bar someone from possessing firearms. The order lasts one year and can be renewed annually.20Oregon Public Law. Oregon Code ORS 166.527 – Petition for Ex Parte Order California’s Gun Violence Restraining Order works similarly, but after a hearing the court can extend the order for up to five years.21California Courts. Gun Violence Restraining Orders in California
Homemade and Unserialized Firearms
Both states regulate ghost guns, though California’s rules are older and more detailed. Penal Code 29180 requires anyone who manufactures or assembles a firearm to apply to the Department of Justice for a unique serial number and permanently engrave it within 10 days. Polymer firearms require a stainless steel insert so the number cannot be melted away. Failing to serialize a homemade handgun can bring up to a year in jail and a $1,000 fine.22California Legislative Information. California Code Penal Code PEN 29180 – Manufacturing or Assembling Firearms
Oregon passed House Bill 2005 in 2023, which took effect in stages. Since September 2024, it is illegal to possess a firearm or unfinished frame or receiver that has not been serialized by a federally licensed manufacturer, importer, dealer, or gunsmith. The practical effect is that building firearms from unserialized parts kits without going through a licensed entity is no longer legal in Oregon either.
Crossing the Border or Moving Between States
Driving Through With Firearms
Federal law under the Firearms Owners’ Protection Act sets a baseline for interstate transport: the firearm must be unloaded, and neither it nor its ammunition can be readily accessible from the passenger compartment. In vehicles without a separate trunk, the gun must be in a locked container other than the glove compartment or console.23Office of the Law Revision Counsel. 18 USC 926A – Interstate Transportation of Firearms
California adds its own layer. Handguns moved by vehicle must be unloaded and locked in the trunk or in a locked container, defined as a fully enclosed container secured by a padlock, key lock, or combination lock. A glove compartment or utility compartment does not qualify.24State of California – Department of Justice – Office of the Attorney General. Transporting Firearms in California The federal transport protection only covers you while passing through. Once you take up residence or spend significant time in the state, California law applies in full.
Moving to California
New California residents have 60 days to report any firearms brought in by filing a New Resident Report of Firearm Ownership with the Department of Justice and paying a $19 fee.25California Legislative Information. California Penal Code 27560 – Personal Firearm Importer Requirements Any firearm that qualifies as an assault weapon under California’s definition cannot be brought into the state at all. Before moving, you would need to sell or transfer the banned firearm, modify it to comply with California’s feature restrictions, or surrender it to a dealer or law enforcement agency. Large-capacity magazines are in the same category: you cannot bring them in, even if you owned them legally in Oregon.
Moving to Oregon
Going the other direction is simpler. Oregon has no registration requirement for firearms brought in from another state, no waiting period before taking possession of guns you already own, and no restrictions on magazine capacity or specific firearm features. A California-compliant rifle with a fixed magazine and featureless grip can be reconfigured to a standard setup once you are an Oregon resident, assuming the firearm is not subject to any federal restriction.
Marijuana and Gun Ownership in Both States
One issue trips up residents of both states equally. Oregon and California have both legalized recreational cannabis, but federal law still classifies marijuana as a Schedule I controlled substance, and any user of an illegal controlled substance is federally barred from possessing firearms. ATF Form 4473, filled out at every dealer purchase, asks directly about marijuana use. Answering dishonestly is a federal crime; answering truthfully disqualifies the purchase. The conflict applies the same way in both states and regularly catches gun owners by surprise, particularly those who hold or have held a medical marijuana card.