KC is capable of anything. I think we've made enough mention of Riley being a pro archer but haven't seen too much dramatic use of that skill. Yeah a little in the Arena but I think we still haven't seen where that skill truly has its payoff. Also Burt specifically mentions as they are driving away from the Colony that it should be easy to find her a new bow. I think that is hinting to an upcoming event. Maybe she gets to take down Randy or Ink instead with her bow but since they are on the Scratch hunt I think that is what is being foreshadowed.