Trijicon HD Night Sight Set Green Tritium Orange Front Outline - Fits H&K USP

The Trijicon HD Night Sight Set (Trijicon model HK106O, MPN 600595) is a self-defense-oriented tritium sight upgrade purpose-built for the H&K USP duty pistol.

This front and rear sight set is engineered around a three-dot green tritium lamp system that delivers an instantly visible aiming reference in low-light or no-light conditions with no batteries, switches, or charging required. The front sight carries a taller blade with a green tritium aiming point ringed in photoluminescent orange paint, while the rear sight pairs two green tritium dots framed in black for a high-contrast rear picture that draws the eye straight to the bright orange index up front.

The set fits the H&K USP full-size service pistol, with the rear sight seating into the slide's existing dovetail and the front blade locating into the USP's front sight retention system. Professional installation is recommended to ensure correct seating in the slide. The sealed tritium lamps keep the sights shoot-ready year after year with no upkeep beyond routine cleaning, making the HD Night Sight Set a trusted carry-ready upgrade over factory iron sights for the USP.

Specified dimensions include a 0.215" front blade height, 0.224" rear blade height, and 0.144" front blade width.