The HE407K is an open reflex optical sight designed for concealed carry pistol applications. The X2 Series pistol optics feature two improvements. First is the Lock Mode, when activated, locks the buttons preventing inadvertent setting changes; Second the buttons have been redesigned to compliment the Lock Mode by placing them lower and out of the way; Holosun's Super Green LED; 50k hours battery life, Multi-Reticle System and Shake Awake. Includes multi-tool, lens cloth and user manual.