Is Switchblades / Automatic Knives Legal in Massachusetts? (2026)
No — Switchblades / Automatic Knives are illegal in Massachusetts as of 2026.
Law changed in 2024: The state's highest court overturned the ban on carrying switchblades in August 2024 in the case of Commonwealth v. Canjura.
Quick Answer
In Massachusetts, switchblades (automatic knives) are generally prohibited under M.G.L. c. 269, § 10(h), which bans possession of certain dangerous weapons including switchblades. Exceptions exist for law enforcement and certain occupational uses. The law specifically prohibits possession, sale, and transfer of switchblades.
What the Law Says
In 2024, the Massachusetts Supreme Judicial Court struck down the state's ban on switchblades, making them legal to possess and carry.
— Massachusetts General Laws, Chapter 269, Section 10
| Category | Details |
|---|---|
| Possession | Illegal to possess switchblades except for law enforcement or authorized persons. |
| Sale & Purchase | Illegal to sell or transfer switchblades within the state. |
| Penalties | Misdemeanor punishable by up to 2.5 years in jail and/or fines. |
| Age Restriction | None (possession is broadly prohibited regardless of age). |
| Pending Legislation | None known |
The state's highest court overturned the ban on carrying switchblades in August 2024 in the case of Commonwealth v. Canjura.
Enforcement Reality
In a landmark 2024 decision, the Massachusetts Supreme Judicial Court struck down the state's ban on carrying switchblades. Enforcement will now focus on unlawful intent.
A common mistake is to be unaware of this very recent change in the law. Many people and even some law enforcement officers may still believe that switchblades are illegal to carry.
Local Exceptions
None identified. State law applies uniformly across Massachusetts. Local ordinances may still vary — check with your city or county government for any additional rules.
Real-World Scenarios: Switchblades / Automatic Knives in Massachusetts
Can You Fly With Switchblades / Automatic Knives Out of Massachusetts?
Since switchblades / automatic knives is illegal in Massachusetts, bringing it to the airport compounds your legal exposure. You're now dealing with both state law and federal jurisdiction. Don't do it.
Can You Cross State Lines With Switchblades / Automatic Knives From Massachusetts?
This is where people get burned. Massachusetts treats switchblades / automatic knives as illegal, but neighboring New Hampshire treats it as restricted. The law changes at the state line — not gradually, not with a warning sign, instantly. "I bought it legally" is not a defense in the new state. Interstate highways near the Massachusetts/New Hampshire border are known enforcement corridors. If you're driving with out-of-state plates in a state where switchblades / automatic knives is illegal, you're a target.
Bottom Line
Switchblades / Automatic Knives are illegal in Massachusetts. Possession or use can result in criminal charges. Do not assume enforcement is lax — penalties are real. Consult a licensed attorney if you have specific questions.
Massachusetts vs. the Rest of the US
Across the US, carrying a switchblade is fully legal in 19 states, restricted in 17, and illegal in 14. Massachusetts falls in the ILLEGAL category.
View the full 50-state map →Body Armor Laws Guide
This topic is closely related to body armor and self-defense laws.
Reviewed by cross-referencing the cited state statute against current legislative databases and regulatory publications.
Sources & Verification
This page was reviewed by Ethan Harper by comparing the legal status against the cited state statute. AllowedHere is an informational resource and does not provide legal advice. Consult a licensed attorney for guidance specific to your situation.
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