Close-Quarters Fighting
( Draconomicon, p. 103)[General]
You are skilled at fighting at very close range and in evading grappling attempts.
Prerequisite
Base attack bonus +3,
Benefit
You can make an attack of opportunity when someone tries to grapple you, provided that you are not flatfooted or already grappled, even if the attacker has the improved grab ability.
Any damage you deal with your attack of opportunity applies as a bonus to the ensuing grapple check you make to avoid becoming grappled. This feat does not grant you an additional attack of opportunity in a round, so the feat does not help you if you have no attacks of opportunity available.
Normal
A creature with the improved grab ability does not provoke an attack of opportunity when beginning a grapple.