Pin Shield
( Sword and Fist: A Guidebook to Monks and Fighters, p. 8)[General]
You know how to get inside your opponent's guard by pinning his shield out of the way.
Prerequisite
Base attack bonus +4, Two- Weapon Fighting,
Benefit
This feat can only be used against an opponent who is using a shield and who is within one size category of you. Make an off-hand attack against an opponent's shield using the normal rules for striking a weapon (see the Player's Handbook, Chapter 8). If your attack roll is successful, you momentarily pin your opponent's shield with your off-hand weapon, and you may make an immediate attack of opportunity against your opponent with your primary weapon at your full attack bonus. Your foe gains no AC benefit from her shield for this attack. You cannot use this feat if you are fighting with only one weapon.