The EPS-RD-6 is a full-sized, enclosed handgun sight featuring an aspheric lens for a perfectly clear sight picture. EPS-RD-6 has an ultra-low dot height for compatibility with most factory iron sights and utilizes Holosun's proven K footprint. EPS-RD-6 includes an RMR-to-K footprint adapter plate for maximum compatibility.EPS-RD-6 features Holosun's 650nm Red Super LED with a 6MOA dot and provides up to 50k hour battery life from a 1620 cell. EPS-RD-6 also includes Shake Awake technology, 8 daylight and 4 night vision compatible reticle intensity settings. EPS-RD-6 is made of 7075 aluminum and is IP68 dust and water proof.Up to 50,000 Hour Battery LifeParallax-free & Unlimited Eye ReliefAspherical Glass Lens with Zero DistortionShake Awake Technology with Last Setting RecallIPX8 Certified WaterproofHolosun "K" series footprint