About Product:HD-14 CMORE plastic holographic internal red dot elevator style C- MORE optical adjustable holographic reflection red dot aiming at railway tactical oscilloscope features: it can provide wind direction and elevation angle integral low power consumption head upward display, get super bright red dot with the fastest target, brightness adjustable, point mode interchangeable with positive lock Bolt's unlimited adjustment of air volume and elevation angle aluminum body, click intensity switch (12 bits = Off, 2 bits NV, 1 bit low light, 8-day light) connect to braided or Picatinny rail bracket, LR44 battery two