Greater Weapon Focus[General]
Choose one type of weapon for which you have already selected unarmed strike or grapple as your weapon for purposes of this feat.
Proficiency with selected weapon, fighter level 8th.
You gain a +1 bonus on all attack rolls you make using the selected weapon. This bonus stacks with other bonuses on attack rolls, including the one from Weapon Focus (see below).
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.
A fighter must have Greater Weapon Focus with a given weapon to gain the Greater Weapon Specialization feat for that weapon.
A fighter may select Greater Weapon Focus as one of his fighter bonus feats.