The Ghost Ring sight is the fastest and easiest-to-use shotgun sight available today. The rugged sight set is fully CNC machined from bar stock steel and has a green tritium insert in the front sight for use in low-light situations. Elevation and windage are both adjusted with a single hex-head screw to ensure accurate shot placement with different types of ammunition. For the Remington model 870, 1100, and 1187 shotguns. Easy to install, complete instructions are included. Parkerized.