Tri-beam Laser Rifle (Broken Steel)

The  is a weapon which will be added to Fallout 3 with the release of the Broken Steel downloadable content pack in May 2009. They are carried by Super Mutant Overlords.

Characteristics
The Tri-Beam Laser Rifle is an extremely powerful ranged laser shotgun.

This weapon appeared in a sneak preview of Broken Steel on X-Play, on April 22nd, 2009:

Apparently it also has a knockback effect.