The Midas TSR1 Red Dot Sight by Athlon Optics provides a fast and versatile aiming solution for nearly any close range set up. Its light weight and low profile makes the TSR1 a good choice for a back up sight to a magnified optic, and can even be mounted on thanks to an RMR compatible footprint. In addition, the TSR1 has an automatic shutoff at 5 minutes and is motion activated making it always at the ready. Features of the Midas TSR1 Red Dot Sight:50,000 hour battery life (medium settings)5 minute automatic shut off Motion activation 10 illumination settings RMR compatible footprint athlon optics Athlon Midas TSR1-M 6MOA Dot Reflex Sight w/RMR Footprint 403017A