I’ve been watching a lot of movies lately, let’s use that for another pathfinder feat..
Off their Feet!
Prerequisites: Exotic Weapon Proficiency(Firearm)
Benefit: When you hit a target with a firearm, for every 10 points of damage you do to the target you may push them 5 feet ignoring difficult terrain. If they are pushed into an area that would deal them damage, they receive a DC15 reflex save to avoid entering that square. This movement does not provoke attacks of opportunity.