The Fat Man MIRV launcher is an experimental weapon mod for the Fat Man in Fallout 4.


The MIRV launcher changes the Fat Man to launch six mini nukes simultaneously instead of just one, or twice as many if used on the Big Boy. It still only causes one mini nuke to be used per shot, but can significantly increase the damage output of the weapon. The mini nukes are initially clustered together after firing, but separate midair after mere milliseconds, similar to a cluster bomb.


Gears (8)
Screw (8)
Spring (7)
Icon range
Icon level
MIRV launcher (1)


This mod cannot be found anywhere in the game but it can be crafted at any weapons workbench if the material and skill requirements are met.


Mbox stub
Expansion required
This article is too short to provide more than rudimentary information about the subject. You can help Nukapedia by expanding it.
Community content is available under CC-BY-SA unless otherwise noted.