The Magni-Hunter from HiViz Shooting Systems utilizes there revolutionary Magni-Optic technology to ensure optimized hand-eye coordination and spot-on accuracy. The Magni-Hunter vent-ribbed shotgun sight fits rib .230" to .330" with there proven magnetic base. The skeletonized base provides the perfect balance of light-gathering optimization and durable protection of the interchangeable LitePipe. The additional light allowed into the LitePipe ensures visibility in early morning or late-evening hunting situations.