$295 + $12 if shipping. This is a customer return but has been tested and will have full Holosun Warranty. Missing user manual, but its available online. HOLOSUN GREEN DOT SIGHT - The SCS-MOS (Solar Charging Sight) is compatible with full-size GLOCK MOS systems; This pistol sight is designed to attach directly to the slide without an adapter plate and uses our innovative solar charging system with multi-directional light sensors to automatically adjust brightness in dynamic situations; NOT compatible with GLOCK 43X MOS or GLOCK 48 MOS.