The Tenmile line is built to take a beating and maintain your zero. And when you want to push farther out, its excellent light transmission, user-selectable LED illumination and crisp, precise adjustments give you the precision you need to make the hit. The Tenmile 4-24x50 features premium glass coatings, a second focal plane MRAD Ranging reticle with daylight bright illumination, and exposed zero stop elevation adjuster.