The HS515CM is a micro red dot optic. The operator can switch from a 2
MOA dot to a 65 MOA circle dot with a push of a button. Holosun's
highly efficient light emitting diodes and solar panels allow Holosun
solar optics to run without a battery in many lighting conditions.
Additionally, the back-up battery lasts up to 5-years on the dot and up
to 2 years on the circle dot. The U signifies a housing design that
shrouds the windage and elevation turrets on two sides. This product
includes clear flip-up lens covers, a quick release mount and a kill