Amazon has Call of Duty: Modern Warfare 3 for Xbox 360 or Playstation 3 for $39.99 each (59.99 – 20 instant savings) with Free Shipping for a limited time.

Call of Duty: Modern Warfare 3 is the thrilling sequel to the multiple Game of the Year award winner, Call of Duty: Modern Warfare 2 that launches you into the dizzying gunfire and intense battles once more. Load up with a destructive arsenal of weaponry and get ready to confront your own mortality as you head into the fiery conflicts. Fight alongside your fellow soldiers to ensure mission success as you seize victory from the enemy. Experience the blood, sweat, grit and glory of war when the astounding power of it comes alive in Call of Duty: Modern Warfare 3.

Also previously posted, Activision has a special offer for Steam users this weekend — anyone can install Call of Duty: Modern Warfare 3 and have access to the full range of multiplayer features for FREE for limited time. The Free Weekend of Call of Duty: Modern Warfare 3 will let you play the entire multiplayer portion of the base game.