The reflections of the sun and environment through the back of your head in the 3d scopes is unrealistic and extremely aggravating. Your head would be blocking out all of the reflections and sun glare that are present in-game. Modern scopes are made specifically to be clear with these environmental effects in mind.

The request is to simply and completely remove the reflection from 3d scopes of all kinds. They are not realistic and they hamper instead of enhance gameplay.