Benefit: Whenever you score a critical hit with a ranged attack, in addition to the normal damage your attack deals, if your confirmation roll exceeds your opponent’s CMD, you can push your opponent back as if from the bull rush combat maneuver or knock that target prone as if from a trip combat maneuver. If you choose to bull rush, you cannot move with the target. Your maneuver does not provoke an attack of opportunity.
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.