Upgrade your Kimber 1911 with XS Sight's bright tritium night sights for superior visibility day or night. R3D 2.0 sights are the premium solution for a traditional notch and post sighting system. The set is engineered to provide a brighter, stronger, and easily installable sighting system. Fits: Kimber 1911 Custom 5" and Kimber Ultra Carry pistols Tritium lamp in front and rear sight glows in low light/no light High-contrast colored front sight Glow Dot absorbs ambient light and glows in low light Serrated rear sight to reduce glare BlackNitride finish for corrosion resistance Black PVC rings to enhance tritium in rear sight Anti-reflective rear tritium lens Rear sight ledge for one-handed slide manipulations Durable CNC machined steel 12 year warranty on tritium Fits standard holster options Kit Includes: front sight, rear sight, red threadlocker, hex wrench for rear sight set screws, insert with instructions Kimber 1911 Custom 5" & Ultra Carry