• Most revolutionary innovation since we introduced fiber optic sight pins!
• Tritium source keeps the fiber bright under any lighting
  condition, including complete darkness.
• Fits 3/16" slotted sights.
• Perfect transition through all lighting conditions.
• Glows in the dark.
• Uses the brightest tritium available.
• Patented technology.
• Available in green or yellow fiber colors.

What is TFO™?
TFO sights and pins are the most revolutionary innovation since TRUGLO, Inc. introduced fiber optics. TFO refers to our patented combination of Tritium and Fiber Optic technologies. The Tritium maintains the brightness level of the sight in low-light (or NO light) conditions. That means you can see your pin even in complete darkness--with perfect transition through all lighting conditions. Tritium does not need batteries and does not need to be charged with light--it simply glows!