When I started to look at the accessories that Alpharius carries around with him, his main side arm was a master crafted plasma blaster. This was one of those cases that I did not know initially how I wanted to go about tackling. I thought about several permutations such as having a silvered weapon with some red or blue plasma coils. Or how about even brass plasma coils from them being inactivated?
However, for me, the Master Crafted aspect of the weapon was what swung the colour scheme eventually. Not only is the sculpt of the plasma blaster notable for an upgraded gun handle, but it also comes with some exquisite detail across all of the weapon. I opted for a golden colour scheme for the main part of the weapon itself. This was to reinforce the master crafted aspect of the gun (and potentially remind me on the table top of this). For the plasma coils, I wanted them heated and ready to go. The choices were between red, green, and blue for me. However, since I am opting to have a heavy weapon plasma cannon squad use green plasma, I wanted to coordinate. Hence green was the go-to colour for me here. The end result is below.
In some ways, it is sad that this side arm is so small! When glued on to Alpharius' thigh, it will be partially hidden. All that glorious highlighting that I've spent so long doing will be hidden. However, that's life. And I wouldn't forgive myself for not doing it on a model as expensive as a Primarch.