This gun is referenced by the actual Smith And Meth-son which made by a American drug dealer.
I'm really appreciate his creativity, although I don't understand the mechanic.
I just want to recreate this well look wasteland style homemade pistol :D
I see some UV is broken if there is some n-poly when export to substance painter, but I leave it, fu*k this shit I'm out :D
Tools:
C4d, blender, substance painter
The original reference:
https://www.facebook.com/MeskwakiPD/posts/310089057922400