Glowing bright both day and night TFX™ sights are always ready. TFX™ takes our award-winning Tritium + Fiber-Optic technology even further with all the features our customers requested: compact snag-free design longer sight radius and amazingly durable construction built to handle just about anything. Illuminating elements are encased inside a virtually indestructible chemical and shock-resistant capsule and the CNC-machined steel is protected with a rust-proof FORTRESS FINISH™. There is even a highly visible white ring surrounding the front fiber to make it even more visible encouraging the eye to rapidly focus on the front sight for a fast and accurate sight picture. TFX™ sights will amaze even the most discriminant shooters. – The first and ONLY of it’s kind – Fully protected TFO® technology encapsulated in a virtually indestructible configuration – Impervious to oils chemicals cleaning solvents and ultra-sonic cleaning processes – Unmatched visibility in all shooting conditions 24 / 7 – Utilizes quality Swiss tritium for maximum brightness – Glows in the dark – No batteries required – Concealed fiber can not be seen by target – FORTRESS FINISH™ provides a permanent protective coating for maximum protection – Snag resistant design – Fits standard holsters – Patented