Holosun HS403R 20mm Micro Red Dot Sight (2 MOA Dot, Rotary Dial)
The Holosun HS403R is a 20mm micro red dot sight with a 2 MOA dot reticle and a rotary dial for illumination control. It features 12 brightness settings (10 daylight and 2 night-vision compatible), parallax-free performance, and unlimited eye relief.
This optic uses a CR2032 battery housed in the rotary switch and is rated for up to 100,000 hours of battery life (setting 6). Includes owner's manual and a low Picatinny mount.