Trijicon AccuPoint 4-16x50mm Riflescope MOA Ranging Crosshair with Green Dot, 30mm Tube, Satin Black, Exposed Elevation Adjuster with Return to Zero Feature TR31-C-200147 Built by perfectionists for perfectionists. When you want the very best-without compromise, without fail, without second guessing-go with a Trijicon AccuPoint riflescope. Designed with battery-free illumination that's always on, the AccuPoint is as technologically sophisticated as it is tough. The versatility of the Trijicon 4-16x50 AccuPoint riflescope gives tactical shooters, long-range hunters, and precision rifle shooters the ability to accurately extend their range in any light. A dual-illumination system powered by tritium and fiber optics automatically adjusts aiming-point brightness to existing lighting conditions, and manual brightness override allows shooters to easily adjust the reticle to suit their preferences for hunting and shooting.