Night Sight Set for Glock 17/19/34Brightest Tritium sights on the market Front sight is brighter than rear, encouraging instinctive ''Front Sight Focus'' to keep your eyes on the target Rugged machined steel sight bodies Matte black Nitride finish excellent wear and corrosion resistance Variety of front dot colors & rear notch configurations to choose from Industry leading 16 year brightness guarantee Night Fision night sights offer a revolutionary new design that with brighter, more