This gundam paper model is a SD MBF-01 Astray Gold Frame Amatsu Perfect Form, a Mobile Suit in Gundam SEED Astray, the papercraft is created by 7200ss, and shared by yenc. This unit however never appeared in the manga itself but only in model kit manual and in books. There are other two MBF-01 Gold Frame gundam papercrafts on the site: MBF-P01 Gundam Astray Gold Frame Papercraft and SD MBF-P01-Re2 AMATU Gundam Astray Gold Frame Amatsu Mina Custom Paper Model.
The original design of MBF-P01-ReAMATU Gundam Astray Gold Frame Amatsu, but was never manufactured as Rondo Gina Sahaku wants the repairs to Gold Frame to be completed as soon as possible. It is equipped with Phase-Shift armor and Mirage Colloid Stealth System that Morgenroete Inc. obtained from analysing the severed GAT-X207 Blitz Gundam's arm. Unlike the Gold Frame Amatsu that is eventually deployed, Gold Frame Amatsu Perfect Form is constructed using completely new parts and for this reason, the 'P' in the model code has been removed. Gold Frame Amatsu Perfect Form is armed with two head-mounted CIWS, Maga no Ikutachi large absorption claws and the Magashira no Hoko harpoons. It is unknown if it is equipped with "Trikeros Kai" offensive shield system or what handheld weapon it is supposed to use, as the design revealed thus far did not show any of these. [Source: wikia]
You can download this paper model template here: