The Holosun HE507K-GR-X2 is a compact open reflex sight built for subcompact pistols like the SIG Sauer P365, Springfield Hellcat, and Glock 43X/48 MOS. Designed for precision and speed in concealed carry applications, it combines rugged reliability with Holosun’s advanced optic technology. Featuring the Multi-Reticle System (MRS), shooters can choose between a 2 MOA green dot, 32 MOA circle, or a circle-dot combo for quick target acquisition. The green Super LED offers enhanced contrast and up to 50,000 hours of battery life on a CR1632 battery. Shake Awake™ activates the optic with motion, while Solar Failsafe™ ensures automatic brightness adjustment and backup power. Constructed from 7075-T6 aluminum with a hard anodized finish, the HE507K-GR-X2 is lightweight, durable, and waterproof to IP67 standards. A side battery tray allows easy replacement without removing the sight, and 12 brightness settings (including 2 for night vision) make it adaptable for any lighting condition.