A special unarmed base attack bonus (UBAB) replaces the normal BAB for monks (and only monks) who fight unarmed or with a kama (if also not wearing armor nor using a shield). This progression gives extra attacks at -3 off the previous attack, rather than the normal -5, with up to six attacks per round possible from this progression. (While the pattern indicates a seventh attack should be possible, the game does not allow it.) As with the regular BAB, this special UBAB is based upon the base attack achieved at level 20 for epic characters.