The HS503R is a 20mm micro optical sight designed for rifle and carbine applications. Features include our new Rotary Switch, Multi-Reticle System, 12 brightness settings, Holosun’s Super LED with up to 50k hour battery life.
 
MRS:2 MOA Dot; 2 MOA Dot & 65 MOA Circle
Up to 100,000 Hours Battery Life (Setting 6)
12 Brightness Setting: 10 DL & 2 NV Compatible
Rotary Battery Compartment
Parallax-free & Unlimited Eye Relief