https://gamesartist.co.uk/walther-p38/
17 year-old Weapons Artist, Vsevolod Ushaev has created this realistic Walther P38, in this article he talks about his complete hard-surface weapons workflow, ref, modelling, Fusion, Low poly, High poly, UVing, sculpting damage, Baking, Texturing, Rendering & Post-processing.
https://www.artstation.com/vsevolodu
https://www.artstation.com/artwork/aG6ORJ