Wait... I've seen this project before. Don't remember what it was, but it had... giant monsters.... or something? Either way, it's an awesome-looking assault rifle. I like the futuristic aesthetic you used
awesome look... apart from the silencer. In RL a silencer like that is really inconvenient because you have to be careful about knocking it. if it isnt exactly straight, the bullet will graze or hit the silencer wall. most guns that come stock with a silencer have a guard.
wouldn't say ruin, but leads to the correct path of fantasy. You need a lot of failures to get to the correct result. Thus for the sake of having an idea, whether or not it's functional, doesn't matter to me. There can always be a revision update.