Yes, brass knuckles are illegal in Tennessee. Tennessee Code 39-17-1302 lists knuckles as a prohibited weapon, and the ban covers possession at home, in your vehicle, and in public.1Justia. Tennessee Code 39-17-1302 – Prohibited Weapons A conviction is a Class A misdemeanor punishable by up to 11 months and 29 days in jail and a fine up to $2,500. There is no permit that makes them legal for civilians.
What Tennessee Counts as Knuckles
The statutory definition is broader than the name “brass knuckles” suggests. Under Tennessee Code 39-17-1301, knuckles means any instrument with finger rings or guards made of a hard substance that is designed or adapted to inflict serious bodily injury by striking someone with an enclosed fist.2Justia. Tennessee Code 39-17-1301 – Part Definitions
“Hard substance” is the phrase that matters. The ban is not limited to brass or metal. Steel, aluminum, carbon fiber, hard plastic, and resin all fall within the statute. That reach matters because plenty of retailers sell plastic or resin “self-defense keychains” shaped like knuckle weapons, sometimes marketed as cat-ear keychains or novelty items. If the object has finger rings or guards made of a rigid material and is designed to increase the impact of a punch, it meets the legal definition regardless of what the seller calls it. Ordering one online and having it shipped to a Tennessee address creates the same exposure as carrying a traditional set.
The Ban Applies Everywhere, Including Your Home
Tennessee Code 39-17-1302 makes it an offense to intentionally or knowingly possess, manufacture, transport, repair, or sell knuckles.1Justia. Tennessee Code 39-17-1302 – Prohibited Weapons Unlike firearms, which the state heavily regulates but broadly permits, knuckles have no legal carry path. No permit, no license, and no training course makes possession lawful.
The statute draws no line between public and private. Keeping knuckles in a nightstand drawer, storing them in a glove compartment, or carrying them in a pocket all violate the same law. Intent to harm anyone is not required. Having them is enough.
Penalties for Simple Possession
Possessing knuckles is a Class A misdemeanor under Tennessee Code 39-17-1302(f)(4), the most serious misdemeanor classification in the state.1Justia. Tennessee Code 39-17-1302 – Prohibited Weapons The maximum penalties come from Tennessee’s general sentencing statute:3Justia. Tennessee Code 40-35-111 – Authorized Terms of Imprisonment and Fines for Felonies and Misdemeanors
- Up to 11 months and 29 days in jail
- A fine up to $2,500
- Both jail time and a fine, at the judge’s discretion
First-time offenders charged only with possession often receive probation rather than jail. A judge still has full discretion to impose the maximum, and prior criminal history or aggravating facts push sentences higher.
When the Charge Becomes a Felony
Using knuckles to hurt or threaten someone changes the case entirely. Under Tennessee Code 39-13-102, an assault that involves the use or display of a deadly weapon is aggravated assault.4Justia. Tennessee Code 39-13-102 – Aggravated Assault Knuckles are designed to inflict serious bodily injury, which places them in deadly-weapon territory.
The felony class depends on mental state:
- Intentional assault with a deadly weapon is a Class C felony, carrying 3 to 15 years in prison and fines up to $15,000.
- Reckless assault with a deadly weapon is a Class D felony, carrying 2 to 12 years in prison and fines up to $15,000.
These penalties apply on top of the separate prohibited-weapon charge. A bar fight where someone pulls out a set of brass knuckles can produce two charges at once: the Class A misdemeanor for possession and a Class C or D felony for aggravated assault.4Justia. Tennessee Code 39-13-102 – Aggravated Assault
The Narrow Statutory Defenses
Tennessee’s prohibited weapons statute lists a few defenses. They are narrow and fact-specific, and several put the burden of proof on the defendant.1Justia. Tennessee Code 39-17-1302 – Prohibited Weapons
Law Enforcement and Military Duty
Possession is defensible when it is incident to the performance of official duty in a government law enforcement agency, a penal institution, or the armed forces, including the Tennessee National Guard. An off-duty officer keeping personal brass knuckles at home would not fall within this defense unless the possession is tied to an official assignment.
Curio, Ornament, or Keepsake
Tennessee Code 39-17-1302(c)(1) creates an affirmative defense for someone who possesses knuckles “solely as a curio, ornament, or keepsake.” This is the closest thing to an antique-collection exception, but as an affirmative defense the defendant must prove it by a preponderance of the evidence. A set displayed in a glass case with other military memorabilia is a much stronger case than a functional set found in a jacket pocket.
Brief Possession After Finding or Disarming an Attacker
If someone finds knuckles or takes them from an aggressor, brief possession is a defense as long as the person does not keep them. The word “brief” is not defined in the statute. Picking a set up off the ground and immediately handing it to police is clearly brief. Leaving them in your car for a week is almost certainly not.
Museum or Exhibition Display
Displaying knuckles in a public museum or exhibition is a statutory defense. It covers the institution and its staff, not private collectors displaying items at home.
Judicial Diversion for First-Time Offenders
Tennessee offers judicial diversion under Tennessee Code 40-35-313, which can keep a conviction off your record. The defendant pleads guilty or is found guilty, the court suspends the sentence, and the person goes on probation. Complete probation successfully and the charge is expunged.5Tennessee.gov. Judicial Diversion or Pretrial Diversion
Anyone with a prior conviction for a Class A misdemeanor or higher is automatically disqualified, and diversion is a one-time opportunity. For someone with a clean record facing a knuckles charge, this is often the single most important option to pursue. Failing to finish probation puts the original sentence back into effect and the conviction becomes permanent.
Long-Term Consequences of a Conviction
A Class A misdemeanor creates a permanent criminal record that shows up on background checks. The practical fallout reaches past the courtroom:
- Employers who run background checks may disqualify applicants from jobs in education, healthcare, security, and government.
- State licensing boards in fields like nursing, law, and real estate routinely ask about criminal convictions and can deny or revoke licenses.
- Landlords increasingly screen for criminal records, and a misdemeanor weapons conviction can complicate rental applications.
One consequence a standalone knuckles conviction does not carry is a federal firearms ban. Under 18 U.S. Code 922, the federal firearm prohibition applies to felony convictions (crimes punishable by more than one year in prison) and to misdemeanor domestic violence convictions.6Office of the Law Revision Counsel. 18 U.S. Code 922 – Unlawful Acts A Tennessee Class A misdemeanor carries a maximum of 11 months and 29 days, which falls below the one-year federal threshold. If the knuckles charge is paired with a felony like aggravated assault, that felony would trigger the federal firearms disability on its own.