I put an Eastman red dot on mine and it's got 4 verticle dots, which for my Yukon works out to 5yd incriments. I sighted the top dot for 20yds and the 2nd centers at 25yds out to 35yds, which I consider my practical limit for deer. I've had it for 3 seasons and dropped it a few times and it still seems to hold to mark when tested before hunting season, haven't gotten a deer yet, but it has taken rabbit and a racoon.