Is Switchblades / Automatic Knives Legal in Massachusetts? (2026)

ILLEGAL
Confidence: High

No — Switchblades / Automatic Knives are illegal in Massachusetts as of 2026.

Key Restriction
Possession and use prohibited
Penalty
No criminal penalty.
Last Updated
2026-03-25

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.

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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
Recent Changes

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.

Charge Level
No criminal penalty.
Enforcement Likelihood
Low
Common Triggers
Use in a crime.
Common Mistakes

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.

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 18 states, restricted in 17, and illegal in 15. Massachusetts falls in the ILLEGAL category.

View the full 50-state map →

Neighboring States

Laws change at state lines. Here is how bordering states compare on Switchblades / Automatic Knives:

Body Armor Laws Guide

This topic is closely related to body armor and self-defense laws.

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Frequently Asked Questions

Is it legal to carry Switchblades / Automatic Knives in Massachusetts?
No — Switchblades / Automatic Knives are illegal in Massachusetts as of 2026. 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 are the penalties for carrying a switchblade in Massachusetts?
Misdemeanor punishable by up to 2.5 years in jail and/or fines.
How strictly does Massachusetts enforce its switchblades / automatic knives laws?
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.
What typically triggers enforcement in Massachusetts?
Use in a crime.
What is the age restriction for carrying a switchblade in Massachusetts?
None (possession is broadly prohibited regardless of age).
Does the law on carrying a switchblade change at the Massachusetts border?
Yes. Switchblades / Automatic Knives are legal with restrictions in neighboring New Hampshire. Laws change at state lines — check each state individually before traveling.

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EH
Ethan Harper Independent Legal Researcher

Reviewed by cross-referencing the cited state statute against current legislative databases and regulatory publications.

Last reviewed: 2026-03-25 Method: Statute cross-reference

Sources & Verification

2.
Statute Summary
In 2024, the Massachusetts Supreme Judicial Court struck down the state's ban on switchblades, making them legal to possess and carry.
Verified: 2026-03-25 Reviewed by: Ethan Harper Method: Statute cross-reference Confidence: High

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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Switchblades / Automatic Knives in Other States

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