Flick of the Wrist [General]

With a single motion, you can draw a light weapon and make a devastating attack.

Prerequisites: Dex 17, Sleight of Hand 5 ranks, Quick Draw.

Benefit: If you draw a light weapon and make a melee attack with it in the same round, you catch your opponent flat-footed (for the purpose of this attack only). You may use this feat only once per round and once per opponent during any single combat encounter.

Source: Complete Warrior, page 99, and Races of the Wild, page 150. The text in both sources is exactly the same.