Modified H&K MP7A1 with 60-round magazine (doesn't exist in real life) and suppressor. All parts can be removed and animated. One single material with 2K textures. About 16K tris. Game ready from any perspective. You can download it for free on Sketchfab and the Unity Asset Store (https://assetstore.unity.com/packages/3d/props/guns/free-fps-weapon-mp7-177246).
This one took me 5 days to make, including texturing and rendering (not 24 hours per day, more like 2-4). As always, better than the last model, I learned a lot and had some good fun making it.
If you have any feedback or thoughts, feel free to leave them in the comments. Cheers.