WS gear was added with AV content patch i believe. It might also be PvP rank related, I didn't see any gear at all on my hordie (R1) and saw the consumables on my ally (R2) yet I have seen multiple horde hunters with the outrider's bow, unless there's another bow with that model in vanilla that I'm unaware of. I sincerely hope allies get access to the WS gear as well, cause yea... implications unpleasant...
EDIT: Disregard everything I said, I'm a fool! WS is not in, http://db.vanillagaming.org/?item=19114 just has the same model as the outrider's bow.