HIVIZ MGH2007-I Magni-Hunter Magnetic Fiber Optic Shotgun Sight Hi-Viz Magni-hunter cross-eye dominant correcting sight Fits vent ribs 15/64" to 21/64" Helps you shoot better Great for all shotgun gauges Easy to install with magnetics Magni-Optics technology for cross-eye dominant shooters Magnetic base sight to fit ribs from .230 to .330 inches. Includes 2 red LitePipes and 2 green LitePipes with pinch pouch carry case Fits Beretta Browning Benelli Remington Franchi Charles Daly Verona Ruger Call HIVIZ for specific models HiViz recommends gunsmith installation for all dovetail sights. Due to manufacturing tolerances, some firearms may require additional fitting.