Are Brass Knuckles Illegal? Understanding the Laws Across the United States

Brass knuckles have always sparked curiosity — and sometimes confusion — when it comes to legality. You might have seen them in movies or online stores and wondered, “Are brass knuckles illegal?” The answer isn’t the same everywhere. Depending on where you live, brass knuckles could be completely legal, restricted, or banned altogether.

This guide breaks down everything you need to know about brass knuckle laws in simple terms. You’ll learn where brass knuckles are legal, what penalties you might face for carrying them, and the rules in popular states like California, Texas, Florida, Illinois, Arizona, New York, Georgia, Ohio, and Missouri.

What Are Brass Knuckles?

Brass knuckles (also called knucks or knuckle dusters) are small metal weapons designed to fit over your fingers. When you punch with them, the metal distributes the force of the blow, making your strike far more powerful. While some people buy brass knuckles for self-defense, others keep them as collectibles or even fashion accessories.

However, because of their potential to cause serious injury, many states treat brass knuckles as dangerous or deadly weapons — similar to knives, firearms, or stun guns.

Are Brass Knuckles Illegal in the U.S.?

There’s no federal law banning brass knuckles in the United States. Instead, each state sets its own rules. In some states, they’re fully legal. In others, they’re banned entirely. Some states fall in the middle — where owning them might be allowed, but carrying them concealed without a permit is not.

Let’s go through the most common categories:

1. Completely illegal — You can’t buy, sell, own, or carry brass knuckles.
2. Legal to own, but not to conceal — You can have them, but carrying them hidden (like in a pocket) requires a permit or is prohibited.
3. Fully legal — You can own and carry them without a permit, but using them to hurt someone is still a crime.
   

Are Brass Knuckles Illegal in California?

Yes. Brass knuckles are completely illegal in California.

Under California Penal Code §21810, it’s a crime to manufacture, import, sell, give, or even possess metal or plastic knuckles. The law doesn’t just apply to brass — it covers all materials, including aluminum, steel, and plastic versions.

If you’re caught with brass knuckles in California, you could face:

• Up to one year in county jail, or
• Up to three years in state prison, and
• A possible fine.

Even if you never use them, simple possession is enough to be charged. So, if you live in California, it’s best to avoid them entirely.

Are Brass Knuckles Legal in Texas?

Yes, brass knuckles are legal in Texas as of September 1, 2019.

Before that date, carrying or owning brass knuckles could land you in jail with fines up to $4,000. But House Bill 446 repealed the old law, making it legal for adults to carry them for self-defense.

This means in Texas, you can:

• Own brass knuckles
• Carry them (openly or concealed)
• Use them for lawful self-defense

However, if you use brass knuckles to attack someone unlawfully, you can still be charged with assault or aggravated assault — so self-defense is the only acceptable use.

Are Brass Knuckles Illegal in Florida?

Florida is a bit more complicated. Brass knuckles are considered “concealed weapons.”

That means:

• You can own them.
• But you can’t carry them concealed (hidden on your body) unless you have a valid concealed weapons permit.

Without a permit, carrying brass knuckles concealed in Florida can lead to misdemeanor or felony charges, depending on the situation. So if you plan to carry them, make sure you meet all permit requirements under Florida Statutes Chapter 790.

Are Brass Knuckles Illegal in Illinois?

Yes. Brass knuckles are illegal in Illinois.

Under Illinois law, it’s a felony to own, carry, manufacture, sell, or even display brass knuckles — no matter what they’re made of. The law is so strict that even jewelry or keychains shaped like knuckles can be considered illegal.

If you’re caught, you could face:

• Up to 5 years in prison, and
• Fines up to $2,500.

Illinois takes weapon-related offenses very seriously, so it’s best not to possess brass knuckles at all in this state.

Are Brass Knuckles Illegal in Arizona?

In Arizona, brass knuckles are legal — but with conditions.

Arizona allows adults 21 years or older to carry concealed weapons, including brass knuckles, without a permit. However, using them to threaten or harm someone can still result in felony assault charges.

In short:

• Legal to own 
• Legal to carry
• Illegal to use unlawfully

As long as you’re acting within self-defense laws, you won’t be violating Arizona’s brass knuckle laws.

Are Brass Knuckles Illegal in New York?

Yes. Brass knuckles are illegal in New York.

New York Penal Law §265.01 makes it a criminal offense to possess metal or plastic knuckles. This includes buying, selling, or carrying them. Even if you claim they’re for self-defense, the law doesn’t make exceptions.

If you’re caught with brass knuckles in New York, you can be charged with criminal possession of a weapon in the fourth degree, which is a Class A misdemeanor punishable by:

• Up to one year in jail, and/or
• Fines up to $1,000.

In short: don’t bring brass knuckles into New York — even as a souvenir.

Are Brass Knuckles Illegal in Georgia?

Brass knuckles are legal in Georgia, but you need to be careful about how you carry them.

Georgia law allows you to own and carry brass knuckles, but using them to harm someone is a crime. Also, you can’t carry them into certain restricted places, like schools, courthouses, or government buildings.

The takeaway: owning brass knuckles in Georgia is fine — misusing them is not.

Are Brass Knuckles Illegal in Ohio?

Ohio’s law doesn’t explicitly mention “brass knuckles,” but they can still fall under “deadly weapons.” That means possessing or carrying them with intent to harm can get you in serious legal trouble.

In Ohio:

• Owning brass knuckles is not specifically illegal.
• Carrying them concealed can be considered a crime without a concealed weapons permit.

If you’re charged, it could be treated as a misdemeanor or felony, depending on the situation. When in doubt, avoid carrying them concealed.

Are Brass Knuckles Illegal in Missouri?

Brass knuckles are legal in Missouri as of August 28, 2022.

Before that, Missouri banned possession and sale of brass knuckles. But an amendment to the state’s weapons law now allows residents to own and carry them. The same law also repealed bans on switchblades and firearm suppressors.

So in Missouri:

• Owning brass knuckles is legal.
• Carrying them is legal.
• Using them unlawfully still carries criminal penalties.

Where Are Brass Knuckles Legal?

As of 2025, brass knuckles are fully legal (without permits) in the following states:

• Texas
• Missouri
• Arizona
• Georgia
• South Dakota
• Utah
• Kentucky
• Wyoming
• Montana
• Ohio (with conditions)

In contrast, they are illegal in:

• California
• New York
• Illinois
• Michigan
• Massachusetts
• New Jersey
• Washington
• Rhode Island
• Nevada
• Hawaii

Other states like Florida, Virginia, North Carolina, and Maryland allow possession but restrict concealed carry without a permit.

Why Are Brass Knuckles Illegal in Some States?

Brass knuckles are banned or restricted because they can cause severe injuries and are often linked to violent crimes. A single punch with brass knuckles can break bones, cause brain injuries, or even be fatal.

Lawmakers view them as weapons with no legitimate self-defense purpose — especially since they’re easy to conceal and hard to detect. In many states, the risk outweighs any benefit, which is why laws remain strict.

What Happens If You’re Caught with Brass Knuckles?

Penalties vary by state but can include:

• Misdemeanor or felony charges
• Fines (ranging from a few hundred to several thousand dollars)
• Jail or prison time
• Confiscation of the weapon

Even if you bought brass knuckles legally online, having them in a state where they’re banned can still lead to charges.

What to Do Before Buying Brass Knuckles

If you’re considering buying brass knuckles for self-defense or as a collectible:

1. Check your state law — Search for your state’s “metal knuckles statute.”
2. Read local (city or county) laws — Some localities are stricter than the state.
3. Understand carry rules — Many states allow ownership but ban concealed carry.
4. Avoid travel with them — Crossing into another state where they’re illegal can get you arrested.
5. Never use them offensively — Self-defense laws vary, and using brass knuckles to attack can lead to assault charges.

Final Thoughts

So, are brass knuckles illegal?

It depends entirely on where you are. Some states like Texas and Missouri allow them freely. Others like California, Illinois, and New York ban them outright. Then there are mixed states like Florida or Virginia, where you can own them but not carry them concealed without a permit.

Always remember — owning or carrying brass knuckles where they’re illegal can bring serious legal trouble. Laws also change frequently, so it’s smart to double-check your state’s latest rules before buying or carrying them.

If you want to stay safe and on the right side of the law, research carefully, stay updated, and when in doubt — leave the brass knuckles behind.