Brass Knuckles are metal devices with holes punched through them, and are thus intended to be worn on the fingers while the fist is clenched. They are meant to increase the force of a punch, while minimizing the initial force needed to throw an arm, and when used properly, they create massive damage against an intended target. Brass Knuckles have been available in Grand Theft Auto games since Grand Theft Auto: Vice City, and have been available in every subsequent game except Grand Theft Auto Advance and Grand Theft Auto IV.
Grand Theft Auto: Vice City
- Ocean Beach, Vice Beach - In the alleyway behind the Ocean View Hotel, just north of the hotel.
- Bodyguards of [[Malibu Club]] carrys Brass Knuckles.
- Commerce, Los Santos - In the alley beside Roboi's Food Mart
- Ganton, Los Santos - Underneath the south end of the bridge beside Ryder's home
- Calton Heights, San Fierro - Behind some car garages northwest of the Calton Heights Safehouse
- Las Payasadas, Bone County - Behind a small building across the street north of the large Pecker's Feed & Seed chicken
- Trenton, Portland Island - Spawns in an alleyway next to the Mean Street Taxis.
- Fort Staunton, Staunton Island - In an alleyway next to Charlie's Liquor Bar.
- Downtown, Vice City Mainland - In an alleyway across the south of the dirt track.
- Ocean Beach, Vice Beach - On the grassy area across the Ammu-Nation.