The HE407C is an open reflex optical sight designed for pistol applications. Features include Holosun's Super LED, 50k hours battery life, green 2 MOA dot only, 12 brightness setting: 10 DL & 2 NV compatible, parallax free, unlimited eye relief Solar Failsafe and Shake Awake. Includes T10 L key, CR1632 battery, lens cloth and user manual.