This paper model is GPB-04B Beargguy, a variation of mobile suit MSM-04 Acguy from the Model Suit Gunpla Builders Beginning G original video animation, and who is piloted by Gunpla Meister Rina Noyama, the papercraft is created by ltla, shared by yenc.
The Beargguy is an oddly designed mobile suit, basing on the original Acguy except for its anthropomorphic bear motif with special red backpack on its back. It's weapons consists of four 105mm vulcan guns mounted in the ears, a mega particle gun mounted in its right forearm, extendable claws also mounted on the right forearm, and six shot missile launchers mounted within the backpack and on the left forearm. The unit is also equipped with a new weapon named the Recorder Beam Saber, which is mounted on the suit's "backpack"-like boosters. The boosters somehow increase the suit's mobility in combat. The Beargguy is also somehow able to hold things with its missile launcher paws, such as the Beam Recorder. [Source: wikia]
You can download this paper model template here: