Some inquisitor domains are not the domains of their faith but are movements within a number of faiths. Many religious individuals and orders find themselves in conflict with the users of arcane magic, and have created inquisitions and training regimens expressly to fight arcane spellcasters.
Deities: Any (with GM approval).
Granted Powers: You gain Exotic Weapon Proficiency (firearms) and Gunsmithing as bonus feats. When you hit an arcane spellcaster or a creature that uses spell-like abilities with a firearm attack, that creature must succeed at a Fortitude saving throw. If the spellcaster fails, he takes a –4 penalty on concentration checks for 1 round.
Pathfinder Roleplaying Game Ultimate Combat. © 2011, Paizo Publishing, LLC; Authors: Jason Bulmahn, Tim Hitchcock, Colin McComb, Rob McCreary, Jason Nelson, Stephen Radney-MacFarland, Sean K Reynolds, Owen K.C. Stephens, and Russ Taylor.