Is it legal to possess a brass knuckles at home in United States?
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Quick answer
Legal position
Current starter summary
The United States does not have one nationwide brass-knuckles rule. Official state sources show state-dependent regulation: California criminalizes manufacturing, importing, keeping for sale, offering for sale, giving, lending, or possessing metal knuckles, while Massachusetts punishes carrying metallic knuckles on the person or under control in a vehicle without legal authorization.
Conditions
What would need to be true
State law governs. California treats possession of metal knuckles as prohibited conduct, while Massachusetts separately punishes carrying or vehicle control; other states may differ materially.
Exceptions
Known carve-outs or edge cases
State-specific exemptions or exceptions may apply.
Penalties
Penalty snapshot
Penalties depend on the state law that applies; California and Massachusetts both create state offences in the cited provisions.
Enforcement
How this may be enforced
State and local police enforce state weapons laws.
More rules in United States
Use the reset build to keep country pages useful even before every row is fully sourced.
buy a pepper spray
The United States does not have one nationwide pepper-spray rule. Official state sources show state-dependent regulation: California allows purchase, possession, and use of qualifying tear-gas aerosol weapons solely for self-defence, while New York allows possession and sale of self-defence spray devices only under listed age, criminal-history, labeling, and vendor rules.
buy a stun gun
The United States does not have one nationwide stun-gun rule. Official state sources show state-dependent regulation: Massachusetts officially says stun guns are allowed but regulated, with official rules restricting access or use by non-licensed persons, while the same state also imposes safe-storage requirements and its official FAQ says a current license to carry is needed to purchase or possess a stun gun.
buy a taser
The United States does not have one nationwide Taser rule. Official state sources show state-dependent regulation of electric-shock weapons: California law places tasers and stun guns together in statutory location restrictions and defines a stun gun broadly as an electrical immobilizing offensive or defensive weapon, while Massachusetts defines stun guns to include devices that deliver shock by dart or projectile via a wire lead and officially says civilian possession is regulated and license-linked.
buy brass knuckles
The United States does not have one nationwide brass-knuckles rule. Official state sources show state-dependent regulation: California criminalizes manufacturing, importing, keeping for sale, offering for sale, giving, lending, or possessing metal knuckles, while Massachusetts punishes carrying metallic knuckles on the person or under control in a vehicle without legal authorization.
Compare this activity in other countries
This makes the rule page useful for comparison without creating a second data source.
Australia
Australia does not have one uniform civilian brass-knuckles rule. Victoria Police classifies a knuckle-duster as a prohibited weapon, and Victoria Police approval material says prohibited weapons generally require Chief Commissioner approval or an applicable exemption for purchase, possession, carriage or transport. Australian Border Force treats knuckle-dusters as weapons subject to border controls.
Austria
Austria classifies brass knuckles as prohibited weapons in category A. The official weapons overview says acquisition, possession and carrying of category A weapons are fundamentally prohibited.
Belgium
Belgian Justice lists American brass knuckles as prohibited weapons. Prohibited weapons cannot lawfully be possessed, bought, transported or carried by civilians.
Canada
Keeping brass knuckles at home is not lawful in Canada for the public because they are prohibited weapons.
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