Even though the trend has been towards rifle scopes with 30mm tubes” there are still many high quality rifle scopes with one inch tubes in the marketplace. Many of GG&G’s customers have asked them to manufacturer a non-marring” 30mm to 1 inch scope ring reducer to fit 5/8 inch wide sniper grade 30mm scope rings or 30mm integral ring bases” like the ones offered by GG&G. To meet their customers’ requests” GG&G decided to offer 1 inch reducers manufactured from solid Delrin. Nothing fancy” just a rugged” non-marring” quality machined 1 inch ring insert that not only fits tight to your 1 inch scope” but is priced competitively.