The Holosun 503CU is a 2 MOA Red Dot micro 20mm solar red dot designed for day and night use, unaffected by extreme weather conditions. Features of the Holosun 503CU Multi-Reticle System include a Solar Failsafe, Shake Awake technology, and 12 unique brightness settings. Holosun combined solar and Super-LED technology to enable automatic brightness features that work together to extend battery life dramatically for more extended use.

When employing the Holosun 503C Super-LED technology, the lifetime for one CR2032 battery can reach two years if left on constantly or up to 50k hours of standard battery life. Included in the box is one Lower 1/3 Co-witness Mount, one Low Profile Mount, T10 L-Key, Rubber Cover, User Manual, CR2032 Battery, and Lens Cloth.

Holosun 503CU Additional Features:

2 MOA dot & 65 MOA Circle
Unlimited field of view
Parallax-free with unlimited eye relief
Durable and reliable construction
Low mount and 1/3 Co-witness mount included