You can find the AmeriGlo I-Dot Green Tritium w/White Outline Sights for Glock 20/21/29 here Fast $9.95 shipping! Orders over $200 ship for free!

AmeriGlo sights are constructed from high quality materials in order to provide you with a superior aftermarket sight option for your Glock firearm. The I-Dot sights utilizes a dot over dot method for quick vertical sight alignment and fast target acquisition and are ideal for the person who is looking to increase their speed on target in a low light defensive situation.

Firearm: Glock 20/21/29/30/31/32/36/40/41 Gen1-4
Front Sight: Green Tritium/White Outline .140"
Rear Sight: Green Tritium Notch
Height: Standard .180"