Call of Duty: Modern Warfare 3 used copy free with pre-owned purchase at Best Buy

Best Buy is offering a free pre-owned copy of Call of Duty: Modern Warfare 3 for Xbox 360 or PlayStation 3 with the purchase of a pre-owned game worth $19.99 or more.

Best Buy is also offering consumers who purchase Xbox 360 versions of five titles the chance to upgrade to the Xbox One version for $9.99. Eligible titles include Assassin's Creed 4: Black Flag(purchase by Nov. 24), Battlefield 4 (purchase by Nov. 24), Call of Duty: Ghosts (purchase by Dec. 5), FIFA 14 (purchase by Oct. 26) and Watch Dogs (purchase by Dec. 21).

Best Buy currently has $15 off on Disney Infinity starter packs and mark downs on a selection of titles. For instance, $59.99 titles such as Saints Row 4 is $49.99, Tom Clancy's Splinter Cell: Blacklist is $44.99 and Injustice: Gods Among Us is $39.99.