Just yesterday we brought you new looks at two alternative armors from Shane Black's Iron Man 3.  As part of the Facebook trivia campaign to "Unlock the Armors," the Mark XXXIII Silver Centurion and Mark XL Shotgun were previously unveiled.  Today's installments include the Mark XVII Heartbreaker and the bulky Mark XXXVIII Igor, previously described by fans as the "Hulkbuster" since it debuted in the most recent trailer.

Starring Robert Downey Jr., Gwyneth Paltrow, Don Cheadle, Guy Pearce, Rebecca Hall, Stephanie Szostak, James Badge Dale, Jon Favreau and Ben KingsleyIron Man 3 opens May 3.  Check out the images after the jump.

Here are the new looks at two more armors from Iron Man 3 (via Facebook):

iron-man-3-mark-xvii-armor-heartbreaker

iron-man-3-mark-xxxviii-igor

Official synopsis:

Marvel’s Iron Man 3 pits brash-but-brilliant industrialist Tony Stark/Iron Man against an enemy whose reach knows no bounds. When Stark finds his personal world destroyed at his enemy’s hands, he embarks on a harrowing quest to find those responsible. This journey, at every turn, will test his mettle. With his back against the wall, Stark is left to survive by his own devices, relying on his ingenuity and instincts to protect those closest to him. As he fights his way back, Stark discovers the answer to the question that has secretly haunted him: does the man make the suit or does the suit make the man?

Click here for all our Iron Man 3 coverage or browse recent coverage below: