So i fucked some gmod setting and now my gun is more annoying / in my way. Before: After: If you can't see it just look at how much wrist vs arm is showing.
I don't think you fucked any settings, that's how the HK SL8 appears whenever I hold it in-game now as well, and I've not touched any console commands I normally wouldn't as of late.
The FOV in this case is set server-side, through the weapon script. You're seeing this because we slightly modified the SL8, mostly due to the new textures (and skin) it got.