I mounted a Helos BTR GEN2 1-10x28 from Athlon Optics on an AR rifle. The scope is very clear and has very little fish eye for a wide range of magnification. I originally bought a Riton X7 Tactix for this rifle, but in low-light conditions, I could not deal with the blinding red ring around the outer edge. This scope has none of that. I prefer the second focal-plane reticle in this scope as quick, close-up shots are much easier to pick up. Also, if you need to estimate range then you will likely have time to adjust the magnification to 10x where the MOA is accurate. The turret clicks are tactile and positive. This scope is the best AR optic you can buy at this price or even double.