$294.11 $249.99

Holosun Circle Dot/Rotary Switch


HS503R – The HS503R is a small compact micro red dot optic that features Holosun’s new Rheo Stat Dial to adjust brightness settings. Employing our LED technology, The HS503R can achieve constant on battery life of up to 5 years on medium setting. This optic features Holosun’s proprietary Multi-reticle System (MRS)

Out of stock


  • Optional 65 MOA Circle Dot or 2 MOA Dot
  • Parallax free with unlimited eye relief
  • Rheo Stat Dial controls and streamlined housing design
  • Low mount and 1/3 Co-witness mount included
  • Adaptable to Picatinny and Weaver rails
  • CNC machining with T6061-T6 aluminum housing.