Fat Man Little Boy Kit

 is a weapon mod for Fat Man in Fallout: New Vegas.

Effects
The  is a weapon modification for the Fat Man in which the weight of the Fat Man is decreased by 50%, making the new weight 15.00 instead of 30.00.

Locations
This weapon mod can often be found at the Gun Runner store between levels 14 and 17 and sometimes at level 18+.

Appearances
The appears in Fallout: New Vegas.