I mounted this on an SKS to a "scout mount" rail which replaced the rear sight leaf. Easy to sight in, very pleased with it so far. Many brightness levels to find your preference for lighting conditions. Had no trouble centering 12" group around the bull at 100 yards offhand without really trying. I like the 50mm lens, but it is large. Others might prefer the 42mm or 30mm versions
Pros: clear view, 11 brightness levels, seems to be well built for the price
Cons: brightness level control a little stiff, but not a deal-killer
This review was written in the old system and had content requirements that are different than reviews written today.