https://gamesartist.co.uk/luger-weapon-moritz-eichinger/
3D Artist, Moritz Eichinger has created this real-time model of a Luger P08, modelled in Max & Blender, and then detail sculpted in ZBrush, textures created in Substance Painter and rendered in Marmoset, in this article he talks about, HQ ref, software, modelling, UVing, Baking, Texturing, Rendering & Lighting and Presentation.
https://www.artstation.com/moeink
https://www.artstation.com/artwork/klmZyy