The Holosun AEMS PRO X2 enhances the AEMS platform by improving accuracy through an advanced optical system that reduces parallax by 50%. AEMS PRO X2 also introduces a forward-facing light sensor creating a smarter AUTO Mode that drastically improves dot contrast in dynamic lighting conditions. AEMS PRO X2 also includes a new Anti-Reflective Device and an all-new four post, lower 1/3 co-witness mount. AEMS PRO X2 remains backwards compatible with original AEMS mounts. FeaturesUp to 50,000 Hours Battery LifeShake AwakeSolar Backup PowerAnti-Reflective Device IncludedFlip Down Protective Lens CoversLower 1/3 Co-Witness Mount Included