Brass knuckles are not illegal to own in Ohio, but carrying them concealed is a crime. Ohio treats brass knuckles as a deadly weapon, and hiding them on your body, in your bag, or within easy reach in your car can bring a first-degree misdemeanor charge carrying up to 180 days in jail. A prior weapons or violence conviction pushes the same conduct into fourth-degree felony territory, with prison time and a lasting weapons disability attached. So the short answer to are brass knuckles illegal in Ohio is: possession at home is fine, concealed carry is not.
How Ohio Classifies Brass Knuckles
Ohio Revised Code Section 2923.11 defines a deadly weapon as any instrument capable of inflicting death that is either designed as a weapon or possessed and carried as one.1Ohio Legislative Service Commission. Ohio Revised Code Section 2923.11 – Weapons Control Definitions The statute doesn’t name brass knuckles, but courts treat them as deadly weapons because they’re built to concentrate the force of a punch and have no real use beyond that.
Before April 2021, Section 2923.20 banned the manufacture, sale, and furnishing of brass knuckles alongside items like blackjacks and switchblades. That language was removed in the 2021 amendment, and the current statute no longer lists brass knuckles among its prohibited transactions. Buying, selling, and keeping them at home is no longer specifically restricted. The legal problem starts the moment they leave the house concealed.
Concealed Carry Is the Main Offense
Ohio Revised Code Section 2923.12 makes it illegal to knowingly carry a deadly weapon concealed on your person or concealed ready at hand.2Ohio Legislative Service Commission. Ohio Code 2923.12 – Carrying Concealed Weapons Brass knuckles in a pocket, waistband, purse, or backpack all qualify. “Concealed ready at hand” reaches further, covering items stashed nearby for quick access even when they aren’t on your body.
A Concealed Handgun License gives you no cover here. The license authorizes concealed carry of handguns only; it does nothing for brass knuckles or any other non-firearm deadly weapon.2Ohio Legislative Service Commission. Ohio Code 2923.12 – Carrying Concealed Weapons
Open carry sits in a grayer zone. Section 2923.12 bans concealed deadly weapons and contains no parallel ban on carrying one openly. In practice, visibly wearing brass knuckles invites disorderly conduct or menacing charges under separate statutes, and an officer who spots them is going to detain you until the situation is sorted out.
Brass Knuckles in Your Car
Keeping brass knuckles in your vehicle is treated the same way as pocketing them. The glove box, center console, or space under a seat all fall within “concealed ready at hand.” Ohio law gives firearms a vehicle exception when they aren’t on your person, but that carve-out applies to firearms only.2Ohio Legislative Service Commission. Ohio Code 2923.12 – Carrying Concealed Weapons If brass knuckles turn up during a traffic stop, expect a carrying concealed weapons charge.
Places Where Penalties Jump
Two locations carry sharply harsher consequences than the baseline charge.
Courthouses
Ohio Revised Code Section 2923.123 makes it illegal to knowingly bring a deadly weapon into a courthouse or any building containing a courtroom, and simply possessing one inside such a building violates the statute as well.3Ohio Legislative Service Commission. Ohio Revised Code 2923.123 – Illegal Conveyance of Deadly Weapon or Dangerous Ordnance Into Courthouse Exemptions for certain law enforcement personnel can be overridden by local court rules.
School Safety Zones
Possessing a deadly weapon in a school safety zone is a fifth-degree felony under Section 2923.122. The zone covers the school building, surrounding premises, school-sponsored activities, and school buses.4Ohio Legislative Service Commission. Ohio Revised Code Section 2923.122 – Illegal Conveyance or Possession of Deadly Weapon in School Safety Zone A prior conviction under this section elevates the charge to a fourth-degree felony, and a conviction can trigger a mandatory additional two-year prison term served before the sentence for the underlying offense.
Penalties
The charge for concealed carry of brass knuckles starts as a first-degree misdemeanor and climbs from there based on your record.
- First-degree misdemeanor, no qualifying prior convictions: up to 180 days in jail and a fine of up to $1,000.2Ohio Legislative Service Commission. Ohio Code 2923.12 – Carrying Concealed Weapons5Ohio Legislative Service Commission. Ohio Revised Code Section 2929.28 – Financial Sanctions, Misdemeanor
- Fourth-degree felony, with a prior conviction for this offense or any offense of violence: six to eighteen months in prison and a fine of up to $5,000.2Ohio Legislative Service Commission. Ohio Code 2923.12 – Carrying Concealed Weapons6Ohio Legislative Service Commission. Ohio Revised Code Section 2929.18 – Financial Sanctions, Felony
The felony step matters beyond the prison time. A felony conviction in Ohio creates a weapons disability that bars you from legally acquiring, carrying, or using firearms. You can petition the court of common pleas in your county for relief, but the court isn’t required to grant it, and any later qualifying offense automatically voids the relief.7Ohio Legislative Service Commission. Ohio Revised Code 2923.14 – Relief From Weapons Disability A brass knuckles charge, if it tips into felony territory, can permanently reshape your ability to own a gun legally.
Self-Defense Doesn’t Erase the Carry Charge
Ohio recognizes self-defense, and since April 2021 you have no duty to retreat before using force in any place you have a legal right to be.8Ohio Legislative Service Commission. Ohio Revised Code 2901.09 – No Duty to Retreat in Residence or Vehicle When you raise self-defense at trial, the prosecution must disprove it beyond a reasonable doubt.9Ohio Legislative Service Commission. Ohio Revised Code Section 2901.05 – Burden of Proof, Reasonable Doubt
What self-defense doesn’t do is excuse the separate crime of carrying a concealed deadly weapon. Prosecutors routinely charge both offenses, and a jury can acquit on the assault while convicting on the concealed weapon. Carrying brass knuckles for personal protection builds a criminal charge into the plan from the start.
Plastic, Carbon Fiber, and Novelty Versions
The material doesn’t rescue you. Ohio’s deadly weapon definition turns on whether the item is capable of inflicting death and was designed or carried as a weapon.1Ohio Legislative Service Commission. Ohio Revised Code Section 2923.11 – Weapons Control Definitions A hard plastic or carbon fiber knuckle duster shaped to fit the fingers and concentrate striking force meets both criteria. Marketing it as a paperweight or novelty item doesn’t change the analysis if a prosecutor can show it was carried as a weapon.