Arizona generally allows broad knife ownership and carry, but the details are more nuanced than a simple “anything goes.” As of March 21, 2026, Arizona does not expressly ban ordinary knife types statewide and broadly preempts stricter local knife ordinances. Still, concealed carry rules, age-based limits, school policies, polling-place rules, and sensitive-location restrictions can matter. This is legal information, not legal advice. (Arizona Legislature)
Quick Answer
Arizona is generally knife-friendly, but the legal effect of carrying a specific knife can still turn on whether it is treated as a “deadly weapon” under the criminal code.
The key statutes are A.R.S. § 13-3101, which defines “deadly weapon” as anything designed for lethal use, A.R.S. § 13-3102, which creates the main carry and place restrictions, and A.R.S. § 13-3120, which broadly preempts local knife regulation. Arizona also separately requires school districts to adopt policies prohibiting weapons on school grounds unless specifically authorized. (Arizona Legislature)
No current Arizona statute reviewed expressly bans ordinary knife ownership statewide.
Arizona’s “prohibited weapon” definition in A.R.S. § 13-3101(A)(8) lists explosives, silencers, automatic firearms, short-barreled rifles and shotguns, and similar items, but not ordinary knives. Arizona also defines “knife” broadly for preemption purposes as a cutting instrument that includes a sharpened or pointed blade. Based on the current statutes reviewed, no general statewide ban was identified on owning common folding knives, fixed blades, daggers, butterfly knives, or automatic knives. (Arizona Legislature)
That does not mean every possession scenario is lawful. If a particular knife is treated as a “deadly weapon,” then separate rules can apply to prohibited possessors, concealed carry, school grounds, polling places, and other restricted places. (Arizona Legislature)
Arizona law reviewed does not impose a general statewide ban on open carry of knives.
The main Arizona carry offenses in A.R.S. § 13-3102 focus on concealed deadly weapons, not ordinary open carry. In practice, Arizona is widely understood as permitting open carry of knives, but that does not override location-based restrictions such as schools, polling places, some public establishments or events, or court security rules. (Arizona Legislature)
Arizona does not flatly prohibit concealed knives, but concealed carry is still regulated.
For adults 21 and older, A.R.S. § 13-3102(A)(1) makes it an offense to carry a concealed deadly weapon in two listed situations: when done in furtherance of certain crimes, or when a law enforcement officer lawfully asks whether the person is carrying a concealed deadly weapon and the person fails to answer accurately. For persons under 21, A.R.S. § 13-3102(A)(2) prohibits carrying a concealed deadly weapon except a pocket knife. (Arizona Legislature)
The important caution is that Arizona’s statutes reviewed here do not define “pocket knife,” even though they use the term as an exception. They also define “deadly weapon” broadly as anything designed for lethal use. That means concealed-carry questions can become fact-specific for some knives, especially larger or combat-style blades. (Arizona Legislature)
No Arizona statute reviewed expressly bans these knife categories statewide.
The current Arizona weapons statutes do not identify switchblades, automatic knives, butterfly knives, daggers, dirks, stilettos, or double-edged knives as prohibited weapons by name. So, based on the statutes reviewed, no express statewide ownership ban was identified for those categories. (Arizona Legislature)
But the absence of a category ban does not eliminate every carry issue. If the knife is treated as a deadly weapon, concealed-carry rules and sensitive-place restrictions can still apply. Federal law also separately regulates switchblades in some interstate-commerce, federal-jurisdiction, and mailing settings. (Arizona Legislature)
The current Arizona statutes reviewed do not indicate a general statewide blade-length limit.
No general statewide knife-length restriction was identified in A.R.S. §§ 13-3101, 13-3102, or 13-3120. Arizona’s knife rules are driven more by concealment, age, place restrictions, and whether the item is treated as a deadly weapon than by a numeric blade-length cap. (Arizona Legislature)
That said, blade size can still matter indirectly in real cases because it may affect whether a knife is argued to be designed for lethal use. The code does not supply a universal statewide safe-harbor measurement. (Arizona Legislature)
Arizona has several important location-based restrictions, especially when a knife is treated as a deadly weapon.
For state criminal law, A.R.S. § 13-3102 prohibits carrying a deadly weapon at an election polling place on election day, possessing a deadly weapon on school grounds, entering a nuclear or hydroelectric generating station with a deadly weapon, and entering a public establishment or public event with a deadly weapon after being reasonably asked to place it in temporary secure storage. “Public establishment” means a structure, vehicle, or craft owned, leased, or operated by the state or a political subdivision, and “public event” is a specifically named or sponsored event of limited duration conducted by a public entity or by a private entity with a permit or license from a public entity. (Arizona Legislature)
Schools deserve separate attention. Arizona criminal law bars possession of a deadly weapon on school grounds, and Arizona school district governing boards must also adopt policies prohibiting a person from carrying or possessing a weapon on school grounds unless the person is a peace officer or has specific authorization from the school administrator. That means school restrictions can be broader in practice than a narrow criminal-code reading alone. (Arizona Legislature)
Court facilities also matter. The Arizona State Courts Building’s official prohibited-items page lists knives, butterfly knives, daggers, razors, razor blades, straight razors, and swords among prohibited deadly weapons or prohibited items for that facility. (Arizona Courts)
Arizona does not appear to impose a general statewide minimum age for ordinary knife ownership or purchase, but it does impose some age and transfer limits.
The clearest age rule in the Arizona weapons statute is A.R.S. § 13-3102(A)(2): a person under 21 may not carry a concealed deadly weapon except a pocket knife. Arizona also prohibits selling or transferring a deadly weapon to a prohibited possessor, and a prohibited possessor may not possess a deadly weapon or a prohibited weapon. (Arizona Legislature)
So the practical takeaway is that Arizona does not look like a state with a broad standalone knife-sales-to-minors statute in the sections reviewed here, but age can still matter for concealed carry, and status can matter if the knife is treated as a deadly weapon. (Arizona Legislature)
Yes. Arizona has broad statewide knife preemption.
A.R.S. § 13-3120 says political subdivisions generally may not enact ordinances, rules, or taxes relating to the transportation, possession, carrying, sale, transfer, purchase, gift, devise, licensing, registration, or use of knives or knife-making components. It also states that any local rule or ordinance relating to knives that is inconsistent with or more restrictive than state law is null and void. (Arizona Legislature)
The statute has limited exceptions, including generally applicable retail tax rules, measures implementing state law, and rules governing local employees or contractors acting within the scope of their work. (Arizona Legislature)
Usually not much for ordinary civilian knife carry, because Arizona sharply limits stricter local knife ordinances.
For most readers, the major point is that cities and counties generally cannot impose knife rules more restrictive than state law. But state-authorized policies can still matter in specific settings, especially school property, government facilities, court buildings, and employer-controlled property. In other words, Arizona preemption is strong, but it does not erase every place-based rule. (Arizona Legislature)
Federal law is separate from Arizona law and can still matter.
The Federal Switchblade Act, 15 U.S.C. §§ 1241-1245, regulates switchblade knives in interstate commerce, certain federal jurisdictions, and ballistic knives. Federal mailing law also matters because 18 U.S.C. § 1716 treats certain automatically opening knives as nonmailable except in specified circumstances. So even where Arizona state law is permissive, federal transportation, mailing, import, or jurisdictional rules can still create separate restrictions. (U.S. Code)
Arizona is broadly permissive on knives, but the safest summary is that legality depends less on blade length and more on concealment, age, location, and whether the specific knife is treated as a deadly weapon.
Table summary based on A.R.S. §§ 13-3101, 13-3102, 13-3102.01, 13-3120, and 15-341(A)(23), plus Arizona judiciary security rules for court facilities. (Arizona Legislature)
| Issue | Arizona Rule |
|---|---|
| General ownership | No general statewide ban on ordinary knives was identified in the statutes reviewed. |
| Open carry | Generally lawful under state law, subject to restricted places and other criminal conduct. |
| Concealed carry, age 21+ | Not flatly banned, but A.R.S. § 13-3102(A)(1) still regulates concealed deadly weapons. |
| Concealed carry, under 21 | A.R.S. § 13-3102(A)(2) bars concealed deadly weapons except a pocket knife. |
| Pocket knife definition | The statutes reviewed do not define “pocket knife.” |
| Blade length | No general statewide blade-length limit was identified in the statutes reviewed. |
| Switchblades and automatics | No express statewide Arizona category ban identified; separate federal limits may still apply. |
| Schools | Deadly weapons are criminally restricted on school grounds, and school districts must maintain weapon-prohibition policies unless specifically authorized. |
| Public buildings or events | A deadly weapon can become unlawful after a reasonable request to place it in secure storage at a public establishment or public event. |
| Polling places | Deadly weapons are prohibited at election polling places on election day unless specifically authorized by law. |
| Local ordinances | Broadly preempted by A.R.S. § 13-3120. |
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No knife-specific enacted change in force as of March 21, 2026 was identified in the current Arizona code and legislative materials reviewed for this article.
Arizona’s online statutes state that the current compilation has been updated through the 57th Legislature, 1st Regular Session, and that the next compilation update will occur after the 57th Legislature, 2nd Regular Session. A review of the Legislature’s bill materials shows continued activity on broader weapons topics, but no March 21, 2026 knife-specific statewide change was identified as currently in force in the materials reviewed here. (Arizona Legislature)
Generally, yes, under Arizona state law reviewed here, because no Arizona statute reviewed expressly bans switchblades as a knife category. Separate federal rules can still matter for interstate commerce, federal jurisdictions, and mailing. (Arizona Legislature)
Usually yes in some form, but A.R.S. § 13-3102(A)(2) prohibits a concealed deadly weapon except a pocket knife for persons under 21. The statutes reviewed do not define “pocket knife,” so edge cases can be fact-sensitive. (Arizona Legislature)
School grounds are a major risk area. Arizona criminal law prohibits deadly weapons on school grounds, and school districts must adopt policies prohibiting a person from carrying or possessing a weapon on school grounds unless specifically authorized. (Arizona Legislature)
Generally not stricter ones. Arizona’s statewide knife preemption law broadly blocks local ordinances that are inconsistent with or more restrictive than state law. (Arizona Legislature)
The current Arizona statutes reviewed do not indicate a general statewide blade-length cap. Restrictions focus more on concealment, age, place, and whether the knife is treated as a deadly weapon. (Arizona Legislature)
Often yes, but vehicle carry can still trigger the concealed-deadly-weapon rules in A.R.S. § 13-3102, especially for persons under 21 or where the knife is treated as a deadly weapon. (Arizona Legislature)
Laws can change, local school or facility rules may still apply, and restricted places, criminal intent, age, and prohibited-possessor status can all affect legality. (Arizona Legislature)
Arizona official sources
Federal official sources