Ameriglo brings a clear advantage to your shooting experience on and off the range.The cap (cover point of impact) sight is designed with large, highly visible front and for rapid sight acquisition.This model has a green tritium square with lime green outline front with a square notch flat black rear that has a horizontal lumi-green line.Compatible with glock 42/43/43x/48 gen1-5.Overall rear sight height 0.272".Rear Color: Black/Lumigreen Line (Non Tritium)Type: Tritium Front/Painted RearFrame Material: SteelFrame Color: BlackFirearm Fit: Glock 42/43/43X/48Style: SetFront Material: TritiumRear Material: PaintFront Color: Green/ Tritium Lumigreen Square OutlineWindage Adjustment: NoElevation Adjustment: NoFirearm Type: Handgun