This is HCM Pro Guncannon - just like Acguy, at 1/200 scale Bandai have managed to pack in one articulated dude! Its actually more articulate than 1/100 scale MG Guncannon. These are great because they are small enough to fit just under your eye lid and are great for keeping you awake when you have to attend boring meetings or conference calls away from your office.
The prices are great too averaging at 1200 yen. You can see the current HCM PRO collection at Gundamer.
HCM Pro Guncannon
HCM PRO Guncannon compared to its big bro 1/100 MG Guncannon.