Have you been in the market for a new sight to use with your AR-15? Look no further. The Meprolight USA Self-Illuminated Flip-Up Sights are some of the best back up night sights in the game. These front and rear sights are perfect if your optic were to go down or as a stand-alone aiming system. The flip up style and elevation adjustment ensure that these sights are extremely low profile. They are made from polymer, metal, and reinforced with tritium, so they will not add much extra weight to your firearm. The front color is green tritium with an orange outline, and the rear color is green tritium as well.Features:AR-15 firearm fitGreen and orange outline front color with a green four dot rear colorFlip up stylePicatinny rail base configurationElevation adjustmentPolymer and metal frameTritium front and rear materialSpecifications:Color: BlackFixed Folding: FoldingIlluminated: IlluminatedPosition: Set