From StarWars.com:
"Fans of the galaxy's fastest "hunk of junk" can look forward to an all-new Midi-scale edition of Han Solo's legendary Millennium Falcon from The LEGO Group this summer, and only Walmart's getting them!

The 356-piece set includes rotating guns both top and bottom, and rotating radar dish. Of course, savvy LEGO builders can add their own "special modifications" to the hull -- this is LEGO building after all!"

Check out the above link for a Q&A about the set.