This gundam paper model is an E.F.S.F. Version MS Gundam Hangar, created by [unknown]. There is also a simple version on the site, and for more hangar papercrafts please click on: Gundam Hangar Paper Models.
You can download this paper model template here: E.F.S.F. Version MS Gundam Hangar Free Papercraft Download [Box] [Gavitex]