Weapon Player models

ok here’s the thing, I think others players have noticed this but, If someone were to hold a css weapon or an addon weapon they would hold it like a pistol. why is that? Is it from the updates? why is this happening?
Am I able to fix this glitch or bug? I have many questions why this is happening.

This is a kinda old bug now it’s something about the weapons not telling both the client and the server how the weapon is held. Either learn what the command is and fix it yourself or wait until the author’s update their weapons

What, it even holds CSS weapons like it?