When do we get Lv.120-140 Dual Bowguns? (Von Leon, PVP & Cygnus)

Thanks D:
Now that I look up Bow attack weapons, I see that the Lv.140 Bow (Bows have the same ATT as Dual Bowguns) is 128ATT, 35DEX which is insane, I think I better just hold off on scrolling one until we can get one of those, but when will it become available? Or is it already?

Pretty sure they're out already unless I'm mistaking them with the Reverse version.