The Nuke Hammer has a small nuclear reactor in each head of the hammer. These reactors energize and spin powerful magnetic turbines. When the Hammer comes into contact with an object (enemy, floor, etc) massive amounts of pooled energy is released.. doing some serious damage to whoever is in the area!

Polycount thread - http://polycount.com/discussion/160696/weapon-swap-jat-kittag-nuke-hammer

Had to re-upload to get the tags to work. Added in the .gif image as well. The spinning bits were part of my original idea, not sure if the admins will let this fly though. ;)