I picked up this Mobile Suit in Action!! figure at Mandarake with the Gaza C figures. This is the Hambrabi RX-139 MSIA 4.5″ from Bandai in 2005. I am not terribly fond of this figure design wise, but it rounds out my collection. The body and color is pretty cool but the head needs a redesign. I am actually surprised this is an Earth Federation Forces mobile suit instead an Axis Zeon suit. Most of the cool suits and variation come from the Zeon suits. It give some much needed reinforcements if I ever put up an Earth vs Zeon display.
The RX-139 Hambrabi is a transformable mobile suit featured in the Mobile Suit Zeta Gundam anime tv series. That is the second Gundam tv series.