Featuring a small solar panel that kicks in if the battery fails, the Holosun Solar-Charging Rifle Sight will help you get on target quickly. A parallax-free tube sight with unlimited eye relief, the SCRS employs a green 2 MOA dot reticle with 12 brightness settings, four of them night-vision compatible, that can be selected manually or automatically based on ambient light. The sight uses shake awake activation and shuts off automatically after being motionless for 10 minutes. The reticle has a 100 MOA adjustment range at 1 MOA per click. The sight comes with a 1.63" lower 1/3 co-witness mount for Picatinny rails; the mount is removable, and the optic's interface is the same as the Holosun HE509T or compatible third-party models.