Brass Knuckle Laws in Maryland (2026): Penalties That Catch People Off Guard

Most people assume brass knuckles are just a movie prop. They’re not. In Maryland, carrying them is a real crime with real consequences. You could face jail time, a fine, or both — even if you never used them.

Let’s break down exactly what Maryland law says, what the penalties are, and what you should know before making any decisions.

What Are Brass Knuckles?

Brass knuckles are handheld weapons. They fit over your fingers like a grip. When you punch, they concentrate the force into a smaller, harder surface. That causes much more damage than a bare fist.

They go by a few names. You might hear “metal knuckles,” “knuckle dusters,” or just “knucks.” Maryland law uses the term “metal knuckles” in its official statutes. But no matter what you call them, the law treats them the same way.

Pretty straightforward so far, right?

Are Brass Knuckles Illegal in Maryland?

Okay, this is where it gets a little nuanced. Sit tight.

Maryland does not have a law that says “you may never own brass knuckles.” Technically, having a pair sitting in your home is not automatically a crime. But the moment you carry them — on your body, in your bag, or in your car on a public road — you’re likely breaking the law.

Maryland Criminal Law Section 4-101 lists metal knuckles as a “dangerous weapon.” That classification makes it illegal to carry them without legal justification. Most regular people have no such justification.

So yes, for the vast majority of Maryland residents, brass knuckles are effectively illegal to carry. And since most people don’t keep weapons locked away at home for display, this law affects almost everyone.

The Key Law: Maryland Criminal Law Section 4-101

This is the main law you need to know. It covers dangerous weapons in Maryland.

The statute names metal knuckles directly. It says you cannot carry them — openly or concealed — without a valid legal exception. That applies on public streets, in vehicles, and in other public spaces.

Wondering if this applies to you? If you’re a regular resident without a special permit or law enforcement credentials, yes, it almost certainly does.

The law has been on the books for years. It has not been repealed or significantly changed. As of 2026, it is still fully in effect.

Carrying Brass Knuckles: Open vs. Concealed

Here’s something a lot of people get wrong. They think that carrying brass knuckles openly is safer than hiding them. Legally, that is not true in Maryland.

Maryland law bans both open and concealed carrying of metal knuckles. It doesn’t matter if they’re tucked in your waistband or hanging from your belt in plain sight. Both can lead to criminal charges.

The only difference is how prosecutors might argue intent. But don’t count on that to save you. If law enforcement sees you with brass knuckles in public, you can be arrested.

Hold on, this part is important. Some states treat open carry more leniently than concealed carry for certain weapons. Maryland does not make that distinction for brass knuckles. Both are illegal.

Penalties for Carrying Brass Knuckles in Maryland

Let’s talk about what actually happens if you’re caught.

Carrying brass knuckles in Maryland is a misdemeanor. That might sound minor. It’s not. A misdemeanor in Maryland can still carry serious consequences.

You could face up to three years in prison. You could also face a fine of up to $1,000. Or you could face both the prison time and the fine together. The court decides based on the circumstances.

Think of it like this — it’s less severe than a felony, but still no joke. Three years is a long time. And a criminal record follows you when applying for jobs, housing, or loans.

There’s one more thing. If the court finds that you were carrying brass knuckles with the intent to injure someone, the judge must give you the maximum prison sentence. That’s written directly into the law. So intent matters — a lot.

Enhanced Penalties: When It Gets Worse

Some situations make the penalties even more serious. You need to know about these.

If you’re caught with brass knuckles near a school or courthouse, prosecutors tend to be more aggressive. Location can affect how they pursue charges. You could face higher scrutiny and stricter sentencing.

If you were committing another crime when you were caught with brass knuckles, things escalate quickly. The weapons charge stacks on top of the other charges. That means you’re facing more time and potentially more fines.

Prior weapons convictions also matter. If you’ve been charged with a weapons offense before, a new charge will be treated more harshly. Maryland courts consider your history when sentencing.

Honestly, this is the part most people miss. They think one charge is one charge. But in Maryland, the circumstances around that charge can multiply the consequences fast.

Who Is Allowed to Carry Brass Knuckles in Maryland?

There are a few exceptions to this law. But they are narrow. Very narrow.

Law enforcement officers can carry dangerous weapons as part of their job. That includes police officers and other conservators of the peace. If carrying a weapon is part of their official duties, they’re covered.

Military personnel in the scope of their duties also have protections. But that applies specifically to their military role, not their personal life.

Holders of a valid handgun permit in Maryland may have slightly more flexibility under the law. The statute does reference permit holders as an exception. But even that does not clearly authorize brass knuckles in all cases.

Here’s what’s important. There is no specific “brass knuckles permit” in Maryland. You can’t just apply for one and get it. The law doesn’t work that way.

Most people have no valid exception. Period.

The “I Didn’t Know” Defense Doesn’t Work

A friend asked me about this recently. They thought buying brass knuckles online and keeping them in a bag was fine because they never “used” them. Turns out, that’s not how Maryland law works.

You don’t have to use brass knuckles to get in trouble. Carrying them is enough. And claiming you didn’t know they were illegal will not help you in court. Judges hear that argument constantly. It doesn’t change the outcome.

Claiming they’re a “collectible” or just “for display” won’t work either. If you have them on your person or in a vehicle, you’re at risk.

What About Plastic or Rubber Knuckle Weapons?

Some people think that if the knuckles aren’t made of metal, they’re in the clear. That’s a dangerous assumption.

Maryland’s statute specifically says “metal knuckles.” So a plastic version may technically fall outside that exact definition. But here’s the thing — Maryland law also has a broader “dangerous weapons” category.

If a plastic knuckle weapon is designed to harm someone and serves no legitimate purpose, courts may still prosecute possession of it. Don’t count on a loophole just because the material isn’t metal.

The safest answer? If it looks like brass knuckles and works like brass knuckles, treat it like brass knuckles under Maryland law.

Brass Knuckles as “Self-Defense”

You cannot legally carry brass knuckles in Maryland for self-defense purposes. That’s clear.

Maryland does allow residents to carry certain self-defense items. Pepper spray is legal, for example. Personal alarms are legal. Tasers are legal in Maryland with certain restrictions. But brass knuckles are not in that category.

If you’re concerned about personal safety and want to carry something for protection, talk to a legal professional. There are lawful options. Brass knuckles are not one of them.

Federal Rules That Also Apply

Wait, there’s more to know.

Federal law doesn’t ban brass knuckles outright. But there are federal rules that affect where you can have them.

You cannot bring brass knuckles in carry-on luggage on an airplane. The TSA will confiscate them. You could also face additional consequences at the airport.

Federal property is another issue. Courthouses, military bases, and post offices are federal property. Bringing brass knuckles onto these properties can lead to federal charges on top of state charges. That doubles your legal trouble fast.

U.S. Customs can also seize imported brass knuckles. Many people try to buy them online from overseas sellers. Customs agents are trained to spot them, even when they’re disguised as keychains or belt buckles.

What to Do If You’re Charged

Okay, pause. If you’ve been charged with a weapons offense in Maryland, this section is for you.

The most important step is to contact a criminal defense attorney right away. Do not try to handle this on your own. Maryland weapons laws are complex. An attorney understands what defenses may apply to your situation.

There are things a lawyer can look into. They can check whether the stop or search that led to your arrest was legal. They can examine whether the item actually meets the legal definition of “metal knuckles.” These details can make a real difference in how your case plays out.

If you were arrested in Southern Maryland — Prince George’s County, Charles County, Calvert County, or St. Mary’s County — look for a defense attorney who practices in those courts specifically.

Don’t wait. The sooner you get legal help, the better your options are.

Other Weapons Banned Under the Same Law

Since we’re here, you should know that brass knuckles are not alone on Maryland’s banned list.

Maryland Criminal Law Section 4-101 covers several other weapons too. Nunchaku are banned — those are the two sticks connected by a chain. Star knives (throwing stars) are banned. Switchblade knives, dirk knives, and sandclubs are also on the list.

The penalties for these items are basically the same. Misdemeanor charges, up to three years in prison, and up to a $1,000 fine.

If you own any of these, it’s worth knowing where you stand legally.

Frequently Asked Questions

Is it illegal to own brass knuckles in Maryland? Owning them at home is not explicitly banned, but carrying them in public is illegal under Maryland Criminal Law Section 4-101.

What is the penalty for carrying brass knuckles in Maryland? It’s a misdemeanor. You could face up to three years in prison, a fine up to $1,000, or both.

Can I carry brass knuckles for self-defense in Maryland? No. Maryland law does not recognize brass knuckles as a legal self-defense weapon for private citizens.

Are plastic knuckles legal in Maryland? Not necessarily. Courts may still charge possession under the broader “dangerous weapons” category if the item is designed to cause harm.

Do I need a permit to carry brass knuckles in Maryland? No permit for brass knuckles exists in Maryland. There is no way to get one.

What should I do if I was arrested for brass knuckle possession? Contact a criminal defense attorney immediately. Do not speak to police without legal representation.

Can I bring brass knuckles on a plane if I’m flying out of Maryland? No. The TSA prohibits brass knuckles in carry-on luggage. They can be confiscated at security.

Final Thoughts

Now you know the basics. Brass knuckles are treated as dangerous weapons under Maryland law. Carrying them — openly or concealed — can lead to misdemeanor charges, jail time, and fines.

You’re not alone if this surprised you. A lot of people assume these laws are vague or rarely enforced. They’re not. Maryland takes weapon offenses seriously, and the penalties are written into clear, specific statutes.

If you’re ever unsure about a specific situation, consult a licensed Maryland attorney. It’s always better to ask before you act than to deal with the consequences after.

Stay informed. Stay safe.

References

1. Maryland Criminal Law Code Section 4-101 – Dangerous Weapons (Justia): https://law.justia.com/codes/maryland/criminal-law/title-4/subtitle-1/section-4-101/
2. Maryland Weapon Laws: Possession, Carrying, and Storage (CriminalDefenseLawyer.com): https://www.criminaldefenselawyer.com/resources/weapons-charges-maryland.htm
3. Are Brass Knuckles Illegal in Maryland? (SOMDCriminalDefense.com): https://somdcriminaldefense.com/are-brass-knuckles-illegal-in-maryland-brass-knuckles/
4. What Self-Defense Weapons Are Legal in Maryland? (Blingsting): https://www.blingsting.com/blogs/news/self-defense-weapons-are-legal-maryland
5. Brass Knuckles Legality by State 2026 (World Population Review): https://worldpopulationreview.com/state-rankings/brass-knuckles-legality-by-state