Get on Target! This Hi Viz BirdBuster Magnetic Shotgun Sight fits virtually any vent rib shotgun. Included are three different size frames. You get two Crimson red Lite Pipes (one round, one triangle) and two Green Lite Pipes (one round, one triangle), and three universal magnetic frames. They are interchangeable among bases to fit virtually any vent-ribbed shotgun. Includes plastic flat-pack carrying case.