The GPO RS673 is designed for those who want to hunt at long distances. The illuminated MOAi scope reticle is in the 2nd focal plane, with a tube diameter of 30mm. Magnification is up to 27x and light transmission is 92%. The RS673 has wide eye relief, as well as an integrated zero stop and is the ideal product for long-range hunters and PRS shooters. The RS673 scope is compact and lightweight and features especially fine crosshairs.