AMERIGLO AmeriGlo GL-816 Trooper For Glk Gen1-4 Orn is committed to manufacturing the highest quality tritium, painted dot, fiber rod, and custom OEM iron sights for the modern hand-gunner. With the largest selection of set options for leading firearm brands, AMERIGLO brings a clear advantage to your shooting experience on and off the range.Features :Sight set with green tritium lamporange or luminescent green outline front and two green tritium lamp rear for GlocksHighly visible under all lighting conditions.LumiGreen paint will glow brightly for 10 minutes after light exposure.