Those with astigmatism may have some issues with blooming and smearing of the reticle or dot when using red dot or holographic sights. If your astigmatism bothers you and makes it difficult to use standard red dot sights, I would recommend using prism style optics with etched reticles such as the Primary Arms SLX 3X and 1X micro.
Yes, this is an absolute co-witness red dot.
The Falke LE 1x 65 MOA Circle/2 MOA Dot Reflex Sight has an integrated mounting base and sits at an absolute co-witness height. You will need a riser to mount the Falke LE 1x 65 MOA Circle/2 MOA Dot Reflex Sight at a lower 1/3 height.
The Diode on the Falke LE 1x 65 MOA Circle/2 MOA Dot Reflex Sight is not visible from the front of the optic.
The Falke LE 1x 65 MOA Circle/2 MOA Dot Reflex Sight can use any brand CR2 3V battery.
Yes. The Falke 1x LE Gen 2 Red Dot Sight is compatible with any magnifier on the market, including Falke magnifiers.
It is possible.
Yes, there should be no issues with mounting this on a 12 gauge.
This is a full size red dot. Will fit only on a picatinny rail rifles.