AEMS CORE X2 ENCLOSESD 2 MOA DOT RIFLE SIGHT AEMS CORE X2 enhances the AEMS platform by improving accuracy through an advanced optical system that reduces parallax by 50%. AEMS CORE X2 also features an all-new four post, lower 1/3 co-witness mount. AEMS CORE X2 remains backwards compatible with original AEMS mounts. FEATURES: Shake Awake(TM) Shake Awake Technology is a standard feature on all current model Holosun optics and serves to extend battery life by deactivating the optic's LED while not in use. A highly sensitive motion sensor works to detect motion keeping the LED powered on during use. This allows for duty or concealed carry with seamless operation t Mfg: Holosun