It’s basically and acog - Primary Arms GLX 2x24mm Prismatic Red Dot Sight

Minus the fiber optic. I’m new to ARs , but man this is a nice scope . Crystal clear glass. Illuminated reticle comes in handy in all light situations . 10 different brightness settings . The only thing I didn’t like, the turning dials were a little mushy, I like more audible and strong clicks . But it holds zero. Severely underrated optic .