Swords are legal to own in Massachusetts without any permit or license, but carrying one in public is where the law turns against you. The state has no dedicated sword statute. Instead, swords are regulated through broader dangerous-weapon laws, and a few specific sword types are banned outright from manufacture and sale. Whether a sword is legal in Massachusetts at any given moment depends on where it is, how it’s built, and what you’re doing with it.
Keeping a Sword at Home
You can keep swords in your home for display, collection, or martial arts practice. Massachusetts does not regulate home possession of swords the way it does firearms, and no Firearms Identification Card or equivalent applies.
There are no state-mandated storage requirements. If you have children or frequent visitors, a locked display case or a room with restricted access is a sensible precaution, because an unsecured weapon that injures someone can produce civil liability even where no criminal offense occurred. Brandishing a sword at another person inside your own home can also lead to assault charges.
Carrying or Transporting a Sword in Public
There is no carry permit for swords in Massachusetts. Unlike firearms, which have a licensing framework for lawful carry, the state provides no mechanism to legally carry a sword on your person in public.
The controlling statute is Chapter 269, Section 10(b). It names specific prohibited weapons, including stilettos, daggers, double-edged knives, ballistic knives, and switch knives, and it adds a catch-all covering “a billy or other dangerous weapon” when someone is arrested for an alleged crime or a breach of the peace.1General Court of Massachusetts. Massachusetts General Laws Chapter 269, Section 10
A double-edged sword likely qualifies as a “knife having a double-edged blade” under the listed weapons. A single-edged sword generally falls under the catch-all. Either way, courts treat sharpened swords as dangerous weapons. Official state jury instructions explain that straight-bladed weapons are generally treated as dangerous per se, meaning their design alone establishes their capacity to cause serious injury.2Mass.gov. Carrying a Dangerous Weapon When Arrested GL c 269 s 10b
An unsharpened decorative wall-hanger sits in a gray zone; it may not qualify as dangerous per se if it genuinely cannot cut. Sharpen the same blade and the analysis changes.
If you have a legitimate reason to move a sword, such as getting to a class or a historical reenactment, transport it in a fully enclosed, non-transparent case and place it in your trunk or another area of the vehicle not within arm’s reach. This does not make transport explicitly legal, but it reduces the risk of a charge by demonstrating a lack of intent to use the weapon.
Air Travel
The TSA prohibits swords in carry-on luggage but allows them in checked bags. Any sword in a checked bag must be sheathed or securely wrapped to protect baggage handlers. The final decision on whether a specific item clears the checkpoint always rests with the individual TSA officer.3Transportation Security Administration. Swords
Mailing a Sword
The USPS allows mailing sharp instruments if the blade is securely wrapped and enclosed so it cannot injure postal workers. USPS Publication 52 covers knives and sharp instruments, with separate rules restricting switchblade shipments to narrow categories of government and military recipients.4Postal Explorer. Publication 52 – Knives and Sharp Instruments Private carriers have their own packaging policies.
Swords That Are Never Legal
Some edged weapons are banned from manufacture and sale in Massachusetts regardless of how you plan to use them. Chapter 269, Section 12 specifically prohibits sword canes, pistol canes, ballistic knives, switch knives with blades over one and a half inches, and knives with detachable blades that can be propelled by a mechanism.5General Court of Massachusetts. Massachusetts General Laws Chapter 269, Section 12
If your sword has a concealed blade inside a cane or walking stick, a hidden mechanism, or any spring-loaded component, it likely falls into a prohibited category. Section 10(b) separately bans carrying stilettos, daggers, double-edged knives, blowguns, metallic knuckles, nunchaku, shuriken, and several others on your person or in your vehicle. Collectors of martial arts weapons should read that list closely, because several items that look like training tools are criminalized.1General Court of Massachusetts. Massachusetts General Laws Chapter 269, Section 10
Using a Sword in Self-Defense
Massachusetts recognizes a castle doctrine. Under Chapter 278, Section 8A, if someone unlawfully enters your home and you reasonably believe they are about to inflict serious bodily injury or death on you or anyone else lawfully in the dwelling, you can use reasonable means to defend yourself, and you have no duty to retreat inside your own home.6General Court of Massachusetts. Massachusetts General Laws Chapter 278, Section 8A
The word “reasonable” carries real weight. Using a sword against an unarmed intruder who poses no lethal threat would almost certainly be considered disproportionate. Courts weigh proportionality, necessity, and whether your belief about the danger was objectively reasonable.
Outside your home, Massachusetts generally imposes a duty to retreat before using deadly force. A sword is inherently a deadly weapon, so any use of one against another person on the street will be scrutinized as deadly force, even if the other person struck first.
Buying and Selling
Massachusetts does not require a background check, dealer license, or prior authorization to buy or sell a standard sword. You can purchase one from a retailer, an online store, or a private seller.
The important exception is disguised weapons. A retailer who sells a sword cane faces a fine of $50 to $1,000 or up to six months in jail under Section 12.5General Court of Massachusetts. Massachusetts General Laws Chapter 269, Section 12
No state statute sets a minimum age to buy a sword. Some retailers voluntarily impose an 18-and-over policy as a store practice, but that’s a business choice rather than a legal rule. Local ordinances in some municipalities may add restrictions on weapon sales.
Importing a sword from overseas is not federally prohibited, though switchblades and spring-loaded knives are subject to seizure at customs.7U.S. Customs and Border Protection. Traveling With a Personal Knife/Switchblade/Sword Into the United States Clearing federal customs does not override Massachusetts law.
Penalties
Penalties for sword-related offenses in Massachusetts are steeper than most people expect, and they depend heavily on whether you have a prior felony conviction.
Carrying a dangerous weapon under Section 10(b) splits into two tracks. With no prior felony, the penalty is a fine of up to $50 or up to two and a half years in a jail or house of correction. With a prior felony, the statute imposes a mandatory minimum of two and a half years and up to five years in state prison, or six months to two and a half years in a house of correction, with no fine-only option.1General Court of Massachusetts. Massachusetts General Laws Chapter 269, Section 10
That mandatory minimum catches people off guard. Someone with an old felony conviction who gets arrested carrying a sword faces real prison time even if the sword was being transported peacefully.
If a sword is used to assault someone, the charge escalates to assault with a dangerous weapon under Chapter 265, Section 15B. The penalty is up to five years in state prison, or a fine of up to $1,000, or up to two and a half years in jail. When the victim is sixty years or older, a second offense carries a mandatory minimum of two years, with no eligibility for probation or parole until one year is served.8General Court of Massachusetts. Massachusetts General Laws Chapter 265, Section 15B
Beyond criminal exposure, reckless or negligent use of a sword can produce civil lawsuits. Courts consider intent, the circumstances of possession, and criminal history when determining both criminal sentences and civil liability.