LEGO 7179 Bulk and Vapor

7179 Dunkan Bulk and Vapor is a Hero Factory special edition set released in July 2010. The set includes two figures, Dunkan Bulk and Vapour. In the set, Dunkan Bulk uses a Sonic Boom weapon and a Metal Sphere Shooter.

In this set, Dunkan Bulk has minor adjustments, such as an Av-Matoran jetpack and a new right arm, which is also used as the arm of 7170 Jimi Stringer. He also has an orange pipe on his head. Vapour's shoulder defense is made from the same part as Corroder's claws. His mask is identical to that of 7162 Rotor, except for the color. Vapour's weapons are also Meteor Blasters with opaque orbs. Vapor's head has the same shape as the Heroes with the color blue.

Vapor can shoot corrosive vapor using its weapons connected to two tubes.

This set is the only rogue set with blue opaque projectiles for the Meteor Blasters.
Originally, LEGO accidentally spelled the set 'Duncan Bulk und Vapour'.
In Germany, the United Kingdom and the United States it was exclusive to Toys "Я" Us.
It is believed that the set was originally going to be "Thresher and Vapour", as Dunkan Bulk closely resembles Thresher, Stormer's first team leader.
In addition to Bulk's regular blaster, he also has Stringer's sonic boom blaster.
Vapor is the only villain who has two blasters instead of one.