The self-defense weapons that are legal in Arizona cover almost everything a civilian would reasonably want to carry: handguns, rifles, and shotguns (openly or concealed, no permit required at 21 or older), pepper spray, stun guns and Tasers, and nearly any knife including switchblades and fixed blades. Arizona’s prohibited weapons list is short and mostly covers explosives and unregistered federal items. The harder questions are who can carry, where, and how you can lawfully use what you have.
Firearms Without a Permit
Arizona is a constitutional carry state. If you are at least 21 and legally allowed to possess a firearm, you can carry one openly or concealed without any permit or license.1City of Phoenix. Arizona Weapons and Firearms Laws FAQs If you are 18 to 20, you can still open carry a loaded firearm as long as it stays visible, but concealed carry is off the table until 21.
Buying a gun is a separate question governed partly by federal law. You must be 21 to buy a handgun from a federally licensed dealer, though an 18-year-old can buy a handgun through a private sale and can purchase a long gun from a dealer.2Bureau of Alcohol, Tobacco, Firearms and Explosives. Minimum Age for Gun Sales and Transfers Arizona does not require background checks or registration for private sales, and the state imposes no magazine capacity limit.
A permit is still worth considering for one reason: travel. The Arizona Concealed Weapons Permit is recognized in 37 other states, and many states do not allow permitless carry at all.3Arizona Department of Public Safety. Concealed Weapons and Permits A new permit costs $60 and requires a safety course and background check.
Carrying in Your Vehicle
At 21 or older, you can keep a loaded firearm anywhere in your car, including the glove box, console, or on your person. Drivers 18 to 20 can carry in the vehicle too, but the firearm or holster must be visible.1City of Phoenix. Arizona Weapons and Firearms Laws FAQs A firearm stored in a case, holster, pack, trunk, glove compartment, or map pocket is not legally “concealed on your person” under the misconduct statute, which protects younger drivers and anyone whose employer prohibits weapons at the worksite but cannot stop you from leaving one locked in your car.4Arizona Legislature. Arizona Code 13-3102 – Misconduct Involving Weapons
If an officer detains you based on reasonable suspicion and asks whether you are armed, you must answer truthfully. You are not required to volunteer the information unprompted.4Arizona Legislature. Arizona Code 13-3102 – Misconduct Involving Weapons
Pepper Spray, Stun Guns, and Tasers
Pepper spray is legal with no state restrictions on canister size or OC concentration. It is not a prohibited weapon, and you can carry it openly or concealed at any age without a permit.
Stun guns and Tasers are also legal to buy and carry. A government-issued ID is required at purchase. These devices are not on the prohibited list, but depending on how they are used, they can fall under the general definition of a deadly weapon.5Arizona Legislature. Arizona Code 13-3101 – Definitions Using any of these tools offensively, rather than defensively, exposes you to the same charges as misusing any other weapon.
Knives
Arizona is one of the most permissive states in the country for knives. At 21 or older, you can carry virtually any knife openly or concealed, with no restrictions on blade length, blade type, or opening mechanism. Switchblades, butterfly knives, daggers, machetes, and fixed-blade knives are all legal.
Under 21, the rule tightens. You cannot carry a concealed deadly weapon, and most knives other than a pocket knife qualify as deadly weapons under state law.4Arizona Legislature. Arizona Code 13-3102 – Misconduct Involving Weapons The statute does not define a specific blade length for “pocket knife.” A standard folding knife is likely fine; a large fixed blade concealed at age 19 could draw a class 3 misdemeanor charge. Open carry remains legal for 18 to 20-year-olds, since the limit applies only to concealed carry.
What Arizona Actually Bans
The prohibited weapons list is narrower than most people assume. It covers:6Arizona Legislature. Arizona Revised Statutes Title 13 Criminal Code 13-3101
- Bombs, grenades, mines, and rockets with a propellant charge over four ounces
- Suppressors, fully automatic firearms, and short-barreled rifles or shotguns that are not registered under the federal National Firearms Act
- Molotov cocktails and similar incendiary devices
- Any chemical or material combination designed to cause an explosion
- Components intended to build any of the above
Items that would otherwise be prohibited become legal if properly registered under the NFA, which requires a $200 federal tax stamp per item.7Bureau of Alcohol, Tobacco, Firearms and Explosives. National Firearms Act Fully automatic firearms made after May 1986 are off-limits to civilians regardless of registration.
Nunchaku, blackjacks, billy clubs, and brass knuckles are not on the prohibited list. Brass knuckles are legal to own and carry but count as deadly weapons, meaning offensive use carries felony exposure.
Who Cannot Possess Any of These
Arizona law makes you a “prohibited possessor,” barred from having a deadly weapon or firearm, if you:5Arizona Legislature. Arizona Code 13-3101 – Definitions
- Have a felony conviction and have not had your firearm rights restored
- Are serving a sentence, including probation, parole, community supervision, or home arrest for a felony or domestic violence offense
- Have been court-ordered as a danger to yourself or others, or as having a persistent or acute disability
- Have been found incompetent under the Arizona Rules of Criminal Procedure and not subsequently restored
- Are an undocumented immigrant or certain nonimmigrant alien, with limited exceptions for hunting permits and competitive shooting
Federal law layers on additional categories, including anyone under felony indictment, unlawful users of controlled substances, and people subject to certain domestic violence restraining orders. Possessing a firearm as a prohibited person is a class 4 felony in Arizona and can carry up to 10 years in federal prison.4Arizona Legislature. Arizona Code 13-3102 – Misconduct Involving Weapons
Where You Cannot Carry
Permissive carry laws still have location exceptions. You commit misconduct involving weapons by knowingly carrying a deadly weapon in:4Arizona Legislature. Arizona Code 13-3102 – Misconduct Involving Weapons
- K-12 school grounds, public or private. You may keep an unloaded firearm locked and out of sight in your vehicle on school property.
- Polling places on election day
- Nuclear and hydroelectric power stations
- Government-owned public establishments and permitted public events, but only after you have been asked to remove the weapon and refused
Federal rules add more: firearms are prohibited inside federal buildings such as courthouses and post offices, and inside airport security areas past TSA checkpoints. In Arizona’s national parks, state carry law applies on park land, but firearms are banned inside any federal facility within the park, including visitor centers and ranger stations.8National Park Service. Firearms in National Parks
Bars and restaurants that serve alcohol are handled differently than in most states. You can carry a concealed handgun inside unless the establishment has posted a sign prohibiting weapons.9Arizona Legislature. Arizona Code 4-229 – Licenses; Handguns; Posting of Notice You cannot consume alcohol while carrying on licensed premises; that is a separate liquor code offense.10Department of Liquor Licenses & Control. Firearms FAQ Any private business or property owner can also prohibit weapons through a posted sign or a direct request to leave.
These rules apply uniformly statewide. Arizona preempts local firearm ordinances, so Phoenix, Tucson, Flagstaff, and every other municipality follow the same rules.11Arizona Legislature. Arizona Code 13-3108 – Firearms Regulated by State; State Preemption
When You Can Actually Use a Weapon
Carrying is one question. Using what you carry is another, and the legal standard matters more than the hardware.
Arizona justifies physical force when a reasonable person would believe it is immediately necessary to protect against someone else’s unlawful use or attempted use of physical force.12Arizona Legislature. Arizona Revised Statutes Title 13 Criminal Code 13-404 Verbal provocation alone does not justify force, and you generally cannot claim self-defense if you provoked the confrontation unless you clearly tried to withdraw and the other person continued attacking.
Deadly force (including firing a gun or using any weapon in a way likely to cause serious injury) requires a reasonable belief that it is immediately necessary to protect against someone else’s unlawful deadly force.13Arizona Legislature. Arizona Revised Statutes Title 13 Criminal Code 13-405 Arizona is a stand-your-ground state, so you have no duty to retreat before using deadly force as long as you are somewhere you have a legal right to be and are not engaged in an unlawful act. This applies in your home, your car, a public sidewalk, or anywhere else lawful.
The state constitution backs the whole framework: Article 2, Section 26 protects the right of the individual citizen to bear arms in defense of himself or the state.14Justia. Arizona Constitution Article 2 Section 26 – Bearing Arms
Showing a Weapon Without Firing
Arizona has a specific statute for defensive display of a firearm, protecting people who show or reference a gun without firing it. The display is justified when a reasonable person would believe physical force is immediately necessary to protect against unlawful force.15Arizona Legislature. Arizona Revised Statutes Title 13 Criminal Code 13-421 Defensive display includes verbally warning that you have a firearm, exposing the firearm in a protective way, or placing your hand on it while it stays in a pocket, purse, or holster. The protection does not apply if you provoked the encounter or displayed the weapon while committing a serious offense.
After You Use a Weapon
Even a legally justified use of force triggers serious legal consequences, and understanding this before you ever need to act matters.
Self-defense justification in Arizona is not an affirmative defense. Once you present evidence that you acted in self-defense, the prosecution must prove beyond a reasonable doubt that you were not justified.16Arizona Legislature. Arizona Code 13-205 – Affirmative Defenses; Justification; Burden of Proof That is a meaningful advantage over states where the defendant must prove justification, but the advantage is relative when you are being interviewed by detectives after a shooting.
Criminal immunity does not automatically block a civil lawsuit. The person you injured, or their family, can sue under a lower standard of proof. Self-defense liability insurance has become common for this reason; coverage terms vary significantly, so the policy details matter more than the pitch.
One practical point above all others: anything you say to police right after an incident can be used to prosecute you. Cooperate with basic identification, point out evidence and witnesses, and then ask for an attorney before giving a detailed statement.