Truglo Tritium Pro Sight, Fits Glock 20,21,29,30,31,32, Large White Focus-Lock Ring onFront Sight & U-Notch Rear Sight, White Dots in Light & Green Dots at Night TG-TG231G2W
Specifications:

Type	Front/Rear Set
Frame Material	Steel
Frame Color	Black
Firearm Fit	Glock 20/21/25/28/29/30/31/32/37/40/41
Base Configuration
Style	U-Notch
Front Material	Tritium
Rear Material	Tritium
Front Color	Green w/White Outline
Rear Color	Green
Rail Size
Windage Adjustment
Elevation Adjustment
Fiber Diameter
Firearm Type	Pistol