Firearms are a recent invention in Saroth, with only the most developed nations beginning to adopt the technology. To use guns you need to either take levels in the Gunslinger class or take the Exotic Weapons Proficiency feat. You may also be interested in the Gunsmithing feat.
Firearms in Saroth
The Kinzer were the first to develop firearms, and the Nosgoth Kinzer use them extensively.
The Empire of Drohen arms its troops with Rifles and its State Magi use mageguns.
|Magegun||10,000gp||1d8||1d10||x3||50 ft.||SS||1||P||3 lbs.|