This papercraft is an Iron Man Mark 24 (Mark XXIV, famously known by its name as the "Tank") Bust, from Marvel Comics' comic books and films, the papercraft is created by Rafael Cunha. The size of finished model is about 400 (H) x 495 (W) x 224 (D) mm.
The Mark 24 (Mark XXIV) is a Heavy Combat Suit, and was one of several new Iron Man Armors created byTony Stark as part of the Iron Legion. The armor was created sometime after the Battle of New York.
It was featured in Iron Man 3, and made its debut when Tony orderedJ.A.R.V.I.S. to initiate the "House Party Protocol", in which it was activated along with the rest of the Iron Legion to aid Tony in his battle against Aldrich Killian.
The suit earned it's name the "Tank", for being able to withstand heavy damage in combat, and just like the Mark 17, has an oversized Chest Repulsor RT, that fires powerful blasts on it's enemies and can also generate a powerful Repulsor Shield for protection. [Source: wikia]
You can download this papercraft template here: Marvel Comics - Iron Man Mark 24 (Mark XXIV) Tank Bust Free Papercraft Download