78Staff is right. The dingy blue green glass (reflective coating) of the PA and other dime store reflex optics is what it is. The pic Cypher posted above is an example though a bit exaggerated. My Aimpoint H1 has a slight tint though not as dark as my PA. I recently posted comparative pics of an Aimpoint H1 vs EOTech. If clear glass is an imperative then EOTech is the way to go- crystal clear. When shooting I'm usually wearing my sunglasses anyway.