Holosun HS503R 20mm Micro Red Dot Sight with 2 MOA Dot / 65 MOA Circle
The Holosun HS503R is a 1x micro tube-style red dot built around a 20mm window and a rotary control for brightness selection. It features a Multi-Reticle System with a 2 MOA dot and a 65 MOA circle option, with 12 brightness settings (10 daylight and 2 night vision compatible).
This optic uses a CR2032 battery and is housed in 6061-T6 aluminum with a MAO finish. A Picatinny rail mount is installed on the sight.