This paper model is a life size CZ53 Personal Minigun (the unique version of the minigun named Eugene), capable of firing 5mm ammunition at over 60,000 RPM with an ammo capacity of 120x 5mm round, based on the Fallout 3 video game, the papercraft was created by Gardian.
The CZ53 personal minigun makes up for the small 5mm round by sending a hail of bullets toward its target. Its sheer size, coupled with its trademark sound, is enough to send anyone in its path running for cover. It's a great weapon for suppressing fire, letting others flank the unsuspecting enemy.
When the Great War struck, it was already an aging design and was slowly being replaced by the more advanced CZ57 Avenger minigun. Later models of the CZ53 have six barrels linked into pairs, with four barrels on top and two on the bottom, a cage underneath the weapon to hold an ammo box containing 240 5mm rounds, and used in combination with a backpack. The first model was the favorite weapon of the Mariposa super mutants during the Unity's time. [Source: wikia]
You can download the papercraft model template here: Fallout 3 - Life Size CZ53 Personal Minigun Free Paper Model Download