The lightweight aluminum housing is shrouded by spring steel for the ultimate in ruggedness while the aspheric lens generates a wide field-of-view with some of the best image quality ever seen in a reflex sight. Leupold’s patented Motion Sensor Technology discerns any movement of the sight and automatically activates the illumination which is inset into a light tunnel to reduce the light signature in tactical situations. The Auto-Brightness sensor immediately and continuously samples the current lighting conditions to provide optimal reticle intensity or this feature can be overridden should a manual mode be required. The DeltaPoint Pro been waterproof tested to 66 feet. The tool-less, spring actuated battery compartment makes changing the battery quick and easy while maintaining an industry leading 66 feet of waterproofness. The 1 MOA elevation and windage adjustments eliminate the need for adjustment lock screws. Includes battery, and protective cover.