Glowing bright both day and night, TFX Pro sights are always ready. TFX Pro 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-resistant Fortress FinishFeatures:Front sight Focuslock for fast and accurate shooting.Assembled in USA with quality Swiss tritium for maximum brightness.Specifications:Fiber Diameter: 0.074.Front Sight Length: 1.0.Front Sight Width: 1.0.Front Sight Height: 1.0.Rear Sight Length: 1.0.Rear Sight Width: 1.0.Rear Sight Height: 1.0.