HIVIZ(R) Wide Magnetic Shotgun Front Sight is designed for shotguns with vent ribs measuring .328 to .437 in wide. The sight uses a magnetic mounting base for installation on compatible shotgun ribs and features a highly visible red fiber-optic LitePipe. Its wide-rib configuration provides a simple front-sight upgrade without requiring a threaded mounting point.Key Features Designed for compatible shotgun vent ribs Fits rib widths from .328 to .437 in Magnetic mounting system Red fiber-optic LitePipe Front sight configuration Wide-rib shotgun designHIVIZ(R) manufactures firearm sights and sighting accessories for handguns rifles and shotguns. The company specializes in high-visibility sighting systems designed to improve sight acquisition under a variety of shooting conditions. HIVIZ products use purpose-selected materials and sight technologies with an emphasis on visibility compatibility and functional performance.