Holosun HS503CU 20mm Solar Micro Red Dot (2 MOA Dot / 65 MOA Circle)
The Holosun HS503CU is a 20mm micro red dot sight built around Holosun Solar Failsafe and the Multi-Reticle System (MRS), allowing selection of a 2 MOA dot or a 65 MOA circle with 2 MOA dot. It features Shake Awake, a side-mounted CR2032 battery compartment, and up to 50,000 hours of battery life (setting 6).
This optic includes the owner's manual and a low Picatinny mount.