SHIELD SPECIALIZATION [Fighter, Combat]
You have mastered the use of one type of shield.
Prerequisite: Proficiency with selected shield, Shield Focus, Fighter level 4.
Benefit: Choose one type of shield (buckler, light, heavy, or tower shield). With the selected shield, you gain a +2 bonus to your Armor Class against critical hit confirmation rolls.
Special: You can gain this feat multiple times. Its effects do not stack. Each time you take the feat, it applies to a new type of shield.