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From Pathfinder Guns & Gears, which isn't enabled.

Pepperbox

ITEM 0
Price 9 gp
Usage held in 1 hand
Bulk 1
Category martial
Group firearm
Damage 1d4 piercing
Range 60 ft.
Reload 1

This weapon is a specialty of the smiths of Alkenstar. The pepperbox has three barrels that each hold a single shot, and the shooter can manually rotate the whole barrel assembly to align a loaded barrel with the firing mechanism.

Pathfinder Guns & GearsORC