Greater Weapon Focus (Combat)
Choose one type of weapon (including unarmed strike or grapple) for which you have already selected Weapon Focus. You are a master at your chosen weapon.
Prerequisites: Proficiency with selected weapon, Weapon Focus with selected weapon, base attack bonus +1, 8th-level fighter.
Benefit: You gain a +1 bonus on attack rolls you make using the selected weapon. This bonus stacks with other bonuses on attack rolls, including those from Weapon Focus.
Special: You can gain Greater Weapon Focus multiple times. Its effects do not stack. Each time you take the feat, it applies to a new type of weapon.