I bought this sight for my M-4. The sight is very durable and solid. I was able to zero the sight easily and it maintains the zero well. I like the Tritium and the fiber optic combo (no batteries). The MOA is a bit big so it will be difficult to get accurate shots over 100 meters. Other thoughts: Needs dust cover included. Also, brightness control would be handy.
Pros: Maintains zero well. Reticle easily visible in most conditions
Cons: No dust cover included. Reticle not adjustable (covers target at longer distances).
This review was written in the old system and had content requirements that are different than reviews written today.