The AmeriGlo GL8113R brought to you by AmeriGlo enhances your shooting experience whether you\'re on the range or in personal defense situations. Hailed as the go-to standard in self-illuminating night sights, its Classic 3-dot design is favored within military and law enforcement circles.Crafted from durable steel, it makes use of Swiss-tritium light sources for optimal visibility. It\'s suited for Glock Gen 5 models, with or without an MOS slide. Note: The height of the rear sight is 0.276\".