Holosun HS403C Red Dot Sight (Solar Battery Dual Power)Not available for US customers. If you place an order containing any Holosun items to be shipped to the US, it will be cancelled and a 5% cancellation fee applied. OVERVIEW The HS403C is a 20mm micro optical sight designed for rifle and carbine applications. Features include Solar Failsafe, 12 brightness settings, Holosuns Green Super LED with up to 50k hour battery life, and 2 MOA Dot. Includes lower 1 3 co witness and low profile mounts. TECHNOLOGY