So, I am smitten with a buildup rifle - but I don't know if it's real or just from a video game.
It's the SC4000. Been looking and I can't find anything anywhere but I may not be looking in the right place.
I has thought of perhaps purchasing a Magpul PTS Per as a base weapon and look to extend with the addition of RIS rail at the front end. Could be a good project. And maybe build in a launcher/ shotgun underneath