Holosun HS407K X2 Holosun HS407K X2 The HS407K is an open reflex optical sight designed for concealed carry pistol applications. Features include Holosun’s Super LED with up to 50k hours battery life, 6 MOA dot only, and Shake Awake. 6 MOA Dot Reticle Up to 50,000... MSRP: Was: Now: $224.99 - $239.99 Choose Options