Flip up Magnifiers should actually flip up and down

The sights which have flip up magnifiers (2x red dot, 2x holographic, 2x kobra), should have the option to flip down the 2x magnifier and allow you to just use the sight. this would be more realistic and make using these sights a much more viable option. i thought this would be in the game already following a lack of that feature in insurgency standalone.