TRIJICON ACOG RCO 4X32 RED CHV M16A4The Trijicon ACOG 4x32 RCO (Rifle Combat Optic) is specifically designed for the M16A4 weapon system. This combat proven optic features a red chevron reticle with bullet drop compensation out to 800 meters for 5. 56 . 223 caliber. The dual illumination technology combines fiber optics for daylight use and tritium for low light conditions, ensuring the reticle is always visible without batteries. The Bindon Aiming Concept (BAC) allows for both eyes