lmao this is airsoft. you dont need anything, its all superficial
i personally use real steel optics (inc vortex) for the quality, warranty, and value retention
but regardless of anything it's a good optic.
my bad, assumed it was rhetorical.
iirc the UH-1 is superior to older eotechs and on par with the EXPS 3.0. i dont think £800 for the uh-1 is justifiable though