XS SIGHT SYSTEMS DXT2 PRO NIGHT SIGHTS FOR GLOCK 42, 43, 43X, 48 Experience unmatched front-sight visibility with the XS Sights DXT2 PRO Series Big Dot Night Sights. Built with a rugged BlackNitride finish and an ultra-durable tac-lamp tritium vial, these sights deliver exceptional performance in all lighting conditions. The DXT2 PRO's industry-leading large, high-contrast front sight naturally draws the eye, pairing with a low-profile V-notch rear to promote rapid, intuitive sight acquisition when every moment matters. Enhanced low-light performance comes standard. The Big Dot's convex glow dot absorbs ambient light to glow brightly before condit Mfg: Xs Sight Systems