AEMS CORE X2 improves the AEMS platform by increasing accuracy with an advanced optical system that cuts parallax by 50%. It also introduces a new four-post, lower 1/3 co-witness mount. AEMS CORE X2 remains backward compatible with the original AEMS mounts.Features :Reticle Color: GreenShake Awake2 MOA DotBattery: CR2032Optic Mount Included10 Daylight and 2 NV Settings