HS407C-X2 Classic Open Reflex Red Dot Sight. 5 x 4 x 3 inches. OPEN REFLEX SIGHT: Holosun's HS407C-X2 is an open reflex optical sight designed to be compatible with pistols and provide a large field of view that will help you to increase accuracy and quickly acquire targets. LONG BATTERY LIFE: The HS407C-X2 optic uses both Solar Failsafe technology and a high capacity lithium ion battery with up to 50,000 hours of battery life to power the optic. SOLAR FAILSAFE TECHNOLOGY: Solar Failsafe allows the red dot sight to remain powered when your battery fails; also features a light sensor allowing the reticle to automatically adjust brightness under any lighting conditions. SHAKE AWAKE: Holosun's Shake Awake Technology shuts the LED off during periods of inaction; at the slightest movement, the on-board motion sensor instantly activates the LED. LOCK MODE: This optic offers a Lock Mode that prevents unintentional button presses while the optic is holstered and a side access battery tray, which allows the operator to change the battery without removing the optic from the firearm. This item is in the category "Sporting Goods\Hunting\Scopes, Optics & Lasers\Red Dot & Laser". The seller is "vteleshop" and is located in this country: VN.