Holosun Technologies was established in 2013 as an industry leading OEM manufacturer. Holosun&';s commitment to developing innovative optic technology in order to benefit the average shooter along with law enforcement and military professionals is second to none. With high quality manufacturing processes and standards Holosun has earned it&';s place among some of the top optics brands in the world. Holosun offers a wide range of affordable options which are military grade quality but without the military grade price.Specifications and Features:Holosun HE403C-GR Elite Green Dot Sight HE403C-GR2 MOA Dot SizeGreen Dot ReticleLED Light SourceParallax FreeUnlimited Eye Relief1x Magnification20mm Diameter WindowMulti-Coated LensCR2032 BatterySolar panelUp to 50,000 Hours Battery Life10 Daylight Modes/2 NV Compatible Modes.5 MOA Adjustments50 MOA Windage/Elevation Adjustments1P67 Submersion RatingUp to 1000G Vibration RatingShake Awake SystemDesigned for day and night useNew advanced technology LED allows up to 50,000 hours of operation on one CR2032 batteryReduced training time and ammunitionUnlimited field of viewParallax-free with unlimited eye reliefUnaffected by extreme weather conditionsDurable and reliable construction6061 Aluminum HousingMatte Black FinishIncludes:Low MountLower 1/3 Co-Witness Mount