Meprolight Tru-Dot sights are up to 20% brighter than other tritium sights. The front dot is slightly brighter than the rear sight to help the shooter focus on the target. Light tubes are sealed with a patented bonding process that makes them impervious to solvents and oils. Tru-Dot sights have a 10-year illumination warranty.
Tritium inserts provide light for low-light shooting
These are the green tritium lamps
These sights will fit models with milled in front sight by pinning to the existing front sight blade