This reflex sight is called Defendu Reflex Sight, and has several reticles. The basic is the 2 MOA dot, or 2 MOA dot and stadia lines, or 2 MOA dot and stadia lines with bigger 13 MOA dot for CQB distance.
It takes 2 AA batteries, but only needs 1 in a pinch. Run time is 2000+ hours with two batteries
Price: $749.99
https://www.steiner-optics.com/battle-sights/drs-1x
From: Steiner via The Firearm Blog
