Mastodawn

The next 3 weapon options for the Chaos Dreadnought's right arm:

A powerfist (cast from the left hand with the thumb moved) with itself options of a decorative chaos plate, combi-bolter, or heavy flamer.

Plasma cannon
This used part of the Helbrute I removed, and the coil was made of wire wrapped around some sprue.

Heavy Bolter
Completely scratch-built.

The first 3 weapon options I shall show off here are for the right arm:
A Multi-Melta,
Twin-linked Las-Cannon, and
Reaper Auto-Cannon.

Chaos Dreadnought.

I was not a fan of much of the Dark Vengeance Helbrute, so when it came time to build this one I made a few changes.

Plus I also scratchbuilt all the missing weapon options and magnetised them all.