Created to address needs of tactical shooters, Trijicon s HD Night Sight Set for S& W M& P Shield Pistol consists of a front sight and a rear U-notch and features three battery-free tritium phosphor lamps and a yellow phosphorescent disk that glows in the dark. The front sight has one tritium lamp encircled by a photoluminescent yellow disk, while the rear U-notch only bears two tritium lamps, one on each wing. This configuration enhances visibility and fast target acquisition in transient lighting conditions. For added durability, the sight s lamps are encapsulated into aluminum cylinders and have silicone cushions. For protection against gun-cleaning agents and proper distribution of light, the lamps are also sealed with sapphire windows.
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