Zenith 10mm Pistol from Deus Ex: Human Revolution.
Based on the awesome concept of Jim Murray http://jimmurrayart.blogspot.jp/2013/03/deus-exhr-stuff-part-1-weapons.html.
Rendered in 3DO using PBR metalness workflow.
4096x4096 albedo, metalness, roughness and normal textures, around 11k tris.