Vector Optics Frenzy Plus 1x22x32 QDThis red dot uses the C More RTS footprint standard. 1 MOA Audible Clicks Make Every Shot w Precision at Different RangeLarge Window Size with 6 MOA Dot Size, Perfect for Fast Shooting Motion Sensor Feature No Worry to Forget to Switch off the Sight Up to 40,000 Hours of Battery Life, Can Be Used for More than 5 Years 8 Red Illumination and 2 Night Vision Mode, Versatile Both in Day and Night With Quick Detach Picatinny Mount, Quickly and Easily