Looking to get a trijicon acog .223 for my xcr. I wanted to use it for coyote hunting. The reticle comes with yardage markers out to 800 yards, well past what ill actually shoot. Magnification is 3.5 which would be perfect. But I notice some trijicons have a reflex site on top?? Are these bought after the fact? Are they sighted in some how from that height??? Sorry never used a rifles site before.


















































