Holosun HS403R Red Dot Sight

The HS403R stands as a compact and efficient micro red dot optic from Holosun, featuring the convenience of Holosun’s rheostat dial for swift brightness adjustments. This rotary control not only ensures faster operation but also provides a visual brightness indicator for added user-friendly functionality. Harnessing the power of Holosun’s ultra-efficient LED technology, the HS403R achieves an impressive “constant on” battery life of up to 5 years. Notable features include a 2 MOA dot size, unlimited field of view, parallax-free design with unlimited eye relief, and a durable, reliable construction. The optic is equipped with a low mount and a 1/3 Co-witness mount, offering versatility in mounting options. With advanced LED technology enabling up to 100,000 hours of operation on a single CR2032 battery, the HS403R is a high-performance and long-lasting choice for firearm optics.