That’s exactly why you separate purely visual stuff from actual gameplay items.
But devs love to be inconsequential and open doors that lead to the abyss and mayhem. Like, why can’t I have an usable “visual” MG42 on my soldiers? Come on devs! Do it!
Used to be german only thing if I recall.
~10% headshot dmg reduction, which in theory protected you from headshot of pistol from other side of map.
In any “normal” combat range it has 0 value as headshot multiplier is so high you die anyway.