Weapons in Pathfinder: Kingmaker are covered on this page. Weapons include swords, wands, axes, firearms etc. You can get the weapons through quest reward, enemy loots or purchase from NPCs.
There is no information on weapons here. I would love to see a table with damage, crit, weight, etc...
Clicking on NPCs brings you to Pillars of Eternity 2 NPCs page instead.