This papercraft is a life size Khorne FB Armor, from Warhammer 40K series, the papercraft is created by Oleg Romanov.
You can download this papercraft template here: Warhammer40K - Life Size Khorne FB Armor Free Papercraft Download [DroBox] [Box] [Gavitex] [Ge.tt]
For more Warhammer 40K paper models please visit the topic here: Warhammer 40K Free Paper Models Collection Topic