Bandai - HGUC - #116 MSN-06S Sinanju

The MSN-06S Sinanju (aka Sinanju) is a mobile suit featured in the Mobile Suit Gundam Unicorn novel, its OVA adaptation and the television re-cut. A modified version of the MSN-06S Sinanju Stein, it was piloted by Full Frontal. 

Originally the MSN-06S Sinanju Stein developed by Anaheim Electronics as part of the Earth Federation's "UC Project", its movable frame is partly made from Psycho-Frame materials. This mobile suit was then stolen and modified into the MSN-06S Sinanju by the Neo Zeon remnant group known as "The Sleeves", and became the personal machine of the group's leader, Full Frontal.