The HS407CO is an open reflex optical sight designed for pistol applications. Features include a 8MOA Open Circle, Holosun's Super LED with up to 50k hours battery life, Solar Failsafe, and Shake Awake. Up to 50,000 Hours Battery Life (Setting 6). 12 Brightness Setting: 10 DL & 2 NV Compatible.Parallax-free & Unlimited Eye Relief. This item is in the category "Sporting Goods\Hunting\Scopes, Optics & Lasers\Red Dot & Laser". The seller is "sportinggearunlimited" and is located in this country: US. This item can be shipped to United States.