Features: Tritium Powered Front & Rear Sight - Glows in low light to aid in sight alignment Colored Front Sight Ring - Highly visible orange ring designed for maximum visibility in bright to low light levels Photoluminescent Ring - Photoluminescent particles absorb ambient light and glow in low light Wide Notch Rear Sight - Draws focus to top edges of sight for proper alignment Rear Sight Overhang - Reduces rear sight glare in bright daylight for greater sight definition Rear Sight Ledge - Aids in one-handed slide manipulations 10 Year Warranty - No Questions Asked Night Sight Warranty Easy Installation - Easily install by hand or sight pusher tool Wide Rear Sight Gap - Increases the amount of light around the front sight for greater visibility in low light Figure 8 Sight Picture - Fool proof alignment prevents shooters from mixing up the front and rear sight