407 series optics are rugged open reflex micro red dot sights designed for pistol use and feature a dot only, or an open circle. 407 series optics feature 12 brightness settings, two which are NV-compatible, and up to 100k hour battery life. Standard features include a 7075 Aluminum housing and Holosun’s Solar Failsafe and Shake Awake Technology. 407 series sights have Unlimited Eye Relief, are Parallax Free, and are IP67 certified waterproof.