FEATURES:-M9A3/ Vertec Night Sights Kit feature tritium gas-filled lamps w/ a sapphire front lens which focuses light & is impervious to solvents-The sapphire lens-enhanced tritium vial is one of the brightest in the industry-The lamps glow bright green in the dark & have white outlines that show as white spots in the daylight-Sight Kit must be installed by a professional gunsmith
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