These weapons fit snugly around the knuckles and allow you to deal lethal damage with an unarmed strike. You may hold, but not wield, a weapon or other object in a hand wearing brass knuckles. You may cast a spell with a somatic component while wearing brass knuckles if you make a successful concentration check (DC 10 + the level of the spell you’re casting). Monks are proficient with brass knuckles. Brass knuckles can’t be disarmed.
| Range | Damage | ||||||
|---|---|---|---|---|---|---|---|
| Weight | Cost | Damage | Critical | Increment | Type | Special | |
| Brass Knuckles | 1 lb. | 1 gp | 1d3 | ×2 | — | Bludgeoning | Monk |
Source: Pathfinder Ultimate Equipment (Page 24)