USP Tactical Heckler & Koch

Hi, awesome people!
Here is my work "USP Tactical Heckler & Koch". During the creation process, I wished to learn not only how to create realistic PBR textures that transform my low-poly model into realism; but also how to create the right topologies in Zbrush.
The most enjoyable part was texturing as far as I wished to improve a lot of my skills there. Furthermore, as you can see the first render was made with a realistic background. That's how I also learned to properly use displacement techniques. Surprisingly, they are very convenient but cost too many polygons. Thank you!
Enjoy!