Bueno, he estado informándome en los foros de Paizo y resulta que no han añadido este tipo de dotes ni la posibilidad de desarmar a distancia porque eso supondría desequilibrar el ataque a distancia en demérito del combate cuerpo a cuerpo. Ten en cuenta, por ejemplo, que la maniobra de desarme provoca ataque de oportunidad sin desarme mejorado, algo que no tendría efecto a distancia.
Una solución sería esto:
Disarming Shot [combat]Prerequisites: Agile Maneuvers, Point-Blank Shot, Precise Shot.
Benefits: Allows performing of disarm maneuver with a ranged weapon as a standard action. The character attempting the maneuver suffers -4 penalty to CMB due to complexity of such shot.
Special: Ranger with archery combat style adds Disarming Shot to his bonus feat list at 6th level.
Disarming Shot, Improved [combat]Prerequisites: BAB +6, Agile Maneuvers, Disarming Shot, Point-Blank Shot, Precise Shot.
Benefits: Reduces the penalty while performing ranged disarm by 2 and the affected weapon drops 15 feet in random direction from the target. Before firing, the shooter may decide to deal normal damage in addition to disarming but his CMB roll has to match both the target's CMD and AC.
Pero habría que mirarlo.