The EPS-RD-2 is a full-sized, enclosed handgun sight featuring an aspheric lens for a perfectly clear sight picture. EPS-RD-2 has an ultra-low dot height for compatibility with most factory iron sights and utilizes Holosuns proven K footprint. EPS-RD-2 includes an RMR-to-K footprint adapter plate for maximum compatibility.EPS-RD-2 features Holosuns 650nm Red Super LED with a 2MOA dot and provides up to 50k hour battery life from a 1620 cell. EPS-RD-2 also includes Shake Awake technology, 8 daylight and 4-night vision compatible reticle intensity settings. EPS-RD-2 is made of 7075 aluminum and is IP68 dust and waterproof.