I love this firearm! I skipped passed your renders thinking they were reference! Looks great in both original and camo skin. Your Marmoset renders are photo realistic.
Here is an update for this project. Let me know what you guys think. I have this Marmoset Viewer over on my Art Station. https://www.artstation.com/artist/mcerasoli
Girlfriend took me to task with lighting in Marmoset which was useful as I've not used MT2 since I bought it last year. Spent some more time developing the texture.
Cheers! I've got a Marmoset Viewer up here which will allow you to view the individual texture channels with the /// button. And yeah, all dDo :) http://millenia3d.net/tb2/P220_WIP/
Not sure if you can imbed this in polycount but couldn't figure it out. Heres a marmoset viewer file for the base anatomy. Cant hide anything in 3d. https://www.artstation.com/artwork/eP4WY
Mine's in desperate need of more content but here it is anyway. Working to figure out how to integrate Marmoset Viewer into a squarespace page. http://merwynlim.com https://www.artstation.com/artist/merwynlim/
Thanks for the kind words! The pins are metal material but I guess it didn't come out so good, but you can see it in the maps on the marmoset viewer on my artstation. Cheers!
Have you applied these textures in engine or in Marmoset? This just looks like the padding Substance uses to get rid of seams, within your UV islands the textures look as they are supposed to.