I have to agree with Icebear on this situation, atleast in dealing with a Sunder-Bow.
Let us take the example of Billy the archer, and Mack the Knife. Mack is wielding a Big Ol' Axe. Billy is well... an archer, duh.
Billy is firing at Mack. Mack, the tank, does the obligatory 'Moving in to attack'. He's within threat range and attacks Billy, becuase Billy doesn't have a threat range, so no AoO.
Billy moves back five feet, and fires again. Mack decides to Sunder.
Mack moves up five feet, and readies an action to sunder Billy's Bow when he fires.
BUT, Billy can't fire at Mack so close without drawing an AoO period, so he moves back five feet, and shoots again. Mack's attempt is foiled.
Mack tries this again. He moves forward, readies an action, and Billy moves back, and fires again.
Rense, Repeat.