Front sight post features rugged steel construction with a bright fiber optic rod to enhance target acquisition. Completely adjustable for elevation. Includes one 4" sample of each color, SIGHTLINK front sight adjustment tool, Allen wrench, front sight blade, detent, fiber optic rods and detailed instructionsFeaturesSteel construction, blued in colorSpring loaded for rock-solid stabilityCustom detent plunger locks blade in place5/8" MOA height adjustment per click