Here are a few renders done in Marmoset Toolbag 3 of the nearly finished textures of the Vector SMG. This particular gun was quite easy to model. Its almost completely flat surface however made the texturing/shading process quite challenging, since all the detail a visual interest that was lacking on the 3D object had to be implemented via the albedo, roughness and metalness maps. There are still a few areas that need some tweaking but overall I'm quite happy with how this bad boy is shaping up.
Here I added a cylinder with emission and transparency maps to see how the effect worked. The tiling is quite obvious but other than that, it gives a nice touch.