This is a AmeriGlo Sight known as the Pro i-Dot, model GL-201.
The AmeriGlo I-dot Night Sight Sets are ideal for the person who is looking to increase their speed on target in a defensive situation. The I-dot configuration utilizes a dot over dot method for quick vertical sight alignment and fast target acquisition. The I-dots also provide you with an extended rear sight for a bit extra sight radius and a glare reducing undercut rear face. This is a superb design for all shooters. The sights are housed in a steel frame which features a matte black finish.
Features:
Green tritium front .140 wide with orange front outline
Green tritium rear
.180 with square notch;Quick vertical sight alignment;Fast target acquisition
