The EPS is a full-sized, enclosed handgun sight featuring an aspheric lens for a perfectly clear sight picture. EPS-GR-2 has an ultra-low dot height for compatibility with most factory iron sights and utilizes Holosuns proven K footprint. EPS includes an RMR-to-K footprint adapter plate for maximum compatibility. EPS-2/6 features Holosuns 650nm Red Super LED with a 2MOA OR 6MOA dot and provides up to 50k hour battery life from a 1620 cell. EPS-2/6 also includes Shake Awake technology, 8 daylight and 4 night vision compatible reticle intensity settings. EPS-RD- MRS also includes Shake Awake technology, 8 daylight and 4 night vision compatible reticle intensity settings. EPS is made of 7075 aluminum and is IP68 dust proof and IPX8 water proof.