Scan-based material imperfection maps, made to easily add scratches, scuffs, and other types of micro-surface details to a material or to be used when creating materials from scratch. I started R&D for this type of asset back in the summer of 2017 and it went public a few months later. Funnily enough, my dry and factual naming style seems to have stuck, becoming an industry-wide standard for this type of asset.
Available at www.megascans.se
Guns made by Alexander Khaliman using these assets and some of my other resources. https://www.artstation.com/khaliman