The TRUGLO Tritium Night Sights are specifically designed for Ruger SR9, SR9C, SR40, SR40C, and SR45 handguns, featuring a bright green front sight. These sights utilize the brightest tritium available to ensure optimal visibility in low light environments.Key FeaturesBright Tritium: Employs the brightest tritium available for clear sighting in darkness.CNC-Machined Steel Construction: Constructed from durable CNC-machined steel for longevity and reliability.Snag-Resistant Design: Designed to prevent snagging during draw from holsters.Compatible with Standard Holsters: Fits standard holsters for ease of use.