User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-1011548-20130910212406/@comment-3062343-20130910212626

I'm not sure, but the armour looks like it could be Tetsukabura's Gunner set. The renders of hunters tend to have the weapon be made from the same monster as the armour, so I'm guessing it's the Tetsu HBG.