Improved Snap Shot

Combat

You can take advantage of your opponent’s vulnerabilities from a greater distance, and without exposing yourself.

Prerequisite: Dex 15, Point-Blank Shot, Rapid Shot, Snap Shot, Weapon Focus, base attack bonus +9.

Benefit: You threaten an additional 10 feet with Snap Shot.

Normal: Making a ranged attack provokes attacks of opportunity.

Source: Ultimate Combat