The AimShot HG-Pro reflex sight is the pinnacle of reflex sight technology. This body is built from 6061 T6 aluminum for a lightweight and durable sight The HG-Pro is waterproof to 30 meters. Its integrated rail mount features a quick release lever for easy installation and removal on any picatinny or weaver rail system. The HG Pro AG features a true 2 MOA green center dot. The HG-Pro features an Auto-Off function which turns off system after 4 hours of idle time.