Athlon Optics Midas TSR3 Red Dot Sight with Built-In Motion Detector, and 50,000 Hours Battery LifeThe speed and versatility of a red dot goes unmatched in close range engagements. Whether you are running a PCC in competition, hunting, or running a red dot on an optics ready pistol, the Athlon Optics Midas TSR3 Red Dot sight has you covered. With 50,000 hours of battery life and motion sensor activation, the TSR series is always ready. The wide field of view offered by TSR3 allows the user to keep both eyes open when engaging close range targets.