The Mepro HVS fixed pistol sight features an extremely bright contrasting colored ring front sight. The tritium is illuminated green to provide low-light and nighttime aiming capabilities. The contrast in colors of the two components helps the shooter focus on the front sight quicker, which is critical in defensive and competitive shooting. Proven advantages are large and colored front sight ring, bright Tritium night sights and available for various handgun models. Fits Glock models 17, 17L, 19, 22, 23, 24, 25, 31, 32, 33, 34, 35, 36, 37, 38, 39.