GG&G 30mm to 1in Scope Ring Reducer. The GG&G 30mm Scope Ring Adapters are a non-marring 30mm to 1 inch scope ring insert that fits 5/8 inch wide sniper grade 30mm scope rings like the ones offered by GG&G Tactical separately or as integral ring bases. GG&G 1 inch Ring Reducers are manufactured from solid Delrin - nothing fancy just a rugged machined ring insert that not only fits tight to your 1 inch scope but is priced competitively. The GG&G One Inch Insert has a recoil flange on one side that keeps the reducer in the correct position during installation and recoil. Each GG&G One-Inch Ring Reducer package includes 4 components enough to fit 2 scope rings. Specifications for GG&G 30mm to 1in Scope Ring Reducer: Manufacturer: GG&G Finish: Matte Tube Diameter: 1 in Ring Quantity: Single Color: Black Country of Origin: USA Features: Both halves of each reducer have a recoil flange on one side that keeps the reducer in the correct position during installation and recoil. Each package includes 4 components; enough parts to do two scope rings. These ring reducers are manufactured from non-marring non-slip Delrin and very easy to install. Lifetime Warranty. Package Contents: GG&G 30mm to 1in Scope Ring Reducer GG&G 30mm to 1in Scope Ring Reducer GGG-1392