Preppers dream red dot! - Mepro OPMOD M21 Red Dot Sights Reflex, HC Reticle

No batteries, fiber optics, and tritium. Works in the light and dark. This thing is rugged and easy to use. I bought it with the polarizer and glad I did because reticle white-out is real. With the polarizer, it completely eliminates it. I also bought the REM 21 Illuminator elsewhere (OP didn't have any) which attaches a battery powered LED to the side of the fiberoptic. It works great, but the LED shines bright through front of the sight and you have to cover the light collector with either tape or black nail polish. Not a fan, and the polarizer does essentially the same thing without the light. The OPMOD reticle is much better than the stock dots as it gives you better aiming points. Plus it just looks cool. My only complaint is that the stock sight cover/sock won't fit on the sight with the polarizer attached. Since the polarizer is sort of essential, I feel like they should make a cover available that fits snuggly with it attached.