Kotobukiya Frame Arms: RF-Ex10/S Wyvern (Transformable)

The Frame Arms Wyvern is the latest variant for the Vulture base design. In this case, the basic design has been upgraded with a pair of gunblades that are also usable in flight mode. It also comes with some new detail upgrades.

However, the base kit used is the Vulture itself, so if you're looking for the Kai upgrade parts, such as the thrusters, the long swords, and the hip mounts for the swords, you may have to get the separate kit for that.

Source:
http://www.kotobukiya.co.jp/fa-blog/fa-blog-97451/