I have them on all my brownings shotguns. I have used truglo stuff before and they never seemed to last. I put a hiviz on my gold 3.5and love it. I have bought 2 citori's and both of them came with hiviz on them. All ofthe ones on my guns have metal frames to them and interchangeable light pipes/fiber optic piece. They have all held up well. I have had one on my gold for several years and have beat and banged it turkey hunting like you wouldn't believe and it has never given me one problem. Good luck.