Feat Locking Grasp
Let ‘em try and wriggle free, it’s their own bones they’ll be breaking.
Prerequisite: Armor Proficiency (medium), grapple modifier +5.
Benefit: When you make a successful melee attack with a gauntlet or spiked gauntlet against an opponent wearing light or no armor, you can attempt to start a grapple as a free action without provoking an attack of opportunity. If you win this grapple check, you pin the foe and can automatically deal gauntlet damage each round you maintain the pin; you can choose to deal nonlethal damage without the usual -4 penalty. Note that most medium and heavy armors (except breastplate) come with gauntlets.
Special: A fighter may select Locking Grasp as one of his fighter bonus feats.