The TriViz from HiViz has revolutionized the way people look at hunting. The triangular elements that form the sight picture align effortlessly and leave absolutely no doubt as to point of impact while ensuring a solid, head-down position on the stock. The TriViz includes four green front sight LitePipes including three triangular LitePipes in different heights to adjust elevation. The traditional round pipe is also included. The TriViz easily mounts on all common vent rib sizes without drilling or tapping.