The AmeriGlo AGENT 3-DOT Tritium Sight Set is specifically designed for use with Glock models 42, 43, 43X, and 48. This sight set features a U Notch style, providing a clear and precise aiming solution in various lighting conditions.Key FeaturesIncluded Components: The set includes three tritium-illuminated dots for improved visibility in low light.Compatibility: Fits Glock models 42, 43, 43X, and 48.