Iron Fist (Fallout 4)

Iron Fist is a perk in Fallout 4.

Effects
The second rank grants a 10% chance to disarm enemies. The third rank grants a 10% to cripple the target's limbs, the fourth rank increases that chance to 15%.

Bugs
Upon unlocking rank five, critical hits in V.A.T.S. while wearing power armor will no longer function; the Sole Survivor will simply stand idle while no animation is played or AP is consumed.