I've got them on my MOG, they literally just clip over the top of the screen.
Where did you get them? I guess they also work as a deflector wen not used as a sun visor.
I bought them from Allon White, I got green tint (because my Mog's greeen) but I think they also did grey/brown and blue. Agree with the baseball cap solution for the sun, and I'm follicley challenged so it protects me from sunburn at the same time.
