This is my first challenge to Blender2.8 Procedual material
The below is the whole node of its main material
wear
dust
height
roughness
bevel node and AO node are super nice!!!
(my challenge to Blender2.79 procedual material is : Cyberpunk M4A1! (procedual material) - #19 by jbattersby )
Artstation: https://www.artstation.com/artwork/xz33nm