Monstrum Rogue Scope Rings 30 mm Diameter 1.26 inch Center Height. Each set of scope rings is precision crafted to a given height specification. Choose the height that matches your particular rifle setup and preferred cheek weld. Your shot is lined up just where you want it every time. Available in multiple heights to match your given needs. Center height is measured from the center of the rifle scope tube to the bottom plane of the mount. Base with recoil stop is compatible with both Picatinny and Weaver mounting platforms. The torx locking screw system allows for quick yet powerful tightening while protecting from the screws from stripping. The rings are crafted from lightweight 6061 grade aluminum with a heavy duty steel mounting mechanism for extreme tolerance. All Monstrum rings and mounts include a lifetime guarantee. Specifications for Monstrum Rogue 30 mm Diameter Riflescope Rings: Manufacturer: Monstrum Finish: Anodized Tube Diameter: 30 mm Ring Quantity: Pair Quantity: 2 Ring Type: Riflescope Ring Fabric/Material: 6061 Aircraft Grade Aluminum Length: 12.1 - 17.9 mm Weight: 3.3 oz Color: Black Mount Type: Picatinny Package Contents: Monstrum Rogue 30 mm Diameter Riflescope Rings Monstrum ZS217H: Rogue Scope Rings 30 mm Diameter 1.26 inch Center Height