Flurry of Blows: Starting at 1st level, a zen archer can make a flurry of blows as a full-attack action, but only when using a bow (even though it is a ranged weapon). He may not make a flurry of blows with his unarmed attacks or any other weapons. A zen archer does not apply his Strength bonus on damage rolls made with flurry of blows unless he is using a composite bow with a Strength rating.
A zen archer’s flurry of blows otherwise functions as normal for a monk of his level.
A zen archer cannot use Rapid Shot or Manyshot when making a flurry of blows with his bow.
Perfect Shot: At 1st level, a zen archer gains Perfect Strike as a bonus feat, even if he does not meet the prerequisites. A zen archer can use Perfect Strike with any bow. At 10th level, the monk can roll his attack roll three times and take the highest result. If one of these rolls is a critical threat, the monk must choose one of his other two rolls to use as his confirmation roll.
This ability replaces stunning fist.
Unarmed Strike: At 1st level, a monk gains Improved Unarmed Strike as a bonus feat. A monk’s attacks may be with fist, elbows, knees, and feet. This means that a monk may make unarmed strikes with his hands full. There is no such thing as an off-hand attack for a monk striking unarmed. A monk may thus apply his full Strength bonus on damage rolls for all his unarmed strikes.
Usually a monk’s unarmed strikes deal lethal damage, but he can choose to deal nonlethal damage instead with no penalty on his attack roll. He has the same choice to deal lethal or nonlethal damage while grappling.
A monk’s unarmed strike is treated as both a manufactured weapon and a natural weapon for the purpose of spells and effects that enhance or improve either manufactured weapons or natural weapons.
A monk also deals more damage with his unarmed strikes than a normal person would, as shown above on Table: Monk. The unarmed damage values listed on Table: Monk are for Medium monks. A Small monk deals less damage than the amount given there with his unarmed attacks, while a Large monk deals more damage; see Table: Small or Large Monk Unarmed Damage.