I found this weird looking gun concept and decided to make it. I haven't got a lot of info about this gun except a single super low res image that i found here: http://cyberpunk.asia/weapons.php?action=upg&begin=508&end=578&lng=us , so some parts are improvised. If you know more about this gun, please let me know!
I used some smart materials from Stefan Engdahl: https://www.artstation.com/artwork/VPxXN
I can really recommend them!