Fisto!

Fisto! is a heavy-duty unarmed weapon in Fallout 3.

Characteristics
It is a unique variant of the pneumatic power fist that is more durable and deals higher base damage than the standard model.

Location
Fisto! can be found on the upper area of the derelict power plant right across from MDPL-13 Power Station next to a computer on a desk. This is northwest of Minefield. Inside the power plant are multiple feral ghouls, and, depending on your level, you may also encounter multiple feral ghoul roamers, glowing ones and, with Broken Steel installed, feral ghoul reavers. It will be in poor condition when found.

Sounds
Кулачище!