Item: XASR-2515 The Vector Optics Dovetail Scope Mounts 25.4mm Adjustable are precision-engineered rings designed to securely attach 25.4mm (1-inch) diameter scopes to firearms equipped with 11mm dovetail rails. Crafted from high-quality 6061-T6 aluminum alloy, these mounts offer robust support while maintaining a lightweight profile. Technical Specifications Diameter: 25.4mm - 1in Height: 30-36mm (1.2-1.4in) from bottom to ring center Ring Width: 21mm - 0.8in Weight (net): 120g / 4.2oz Finish: black matte Material: 6061-T6 Mount: 1913 picatinny Unique construction provides strength well with steel cross-bolt Four torx screws per ring will hold your scope under any conceivable situations Perfect alignment and superior accuracy Do not use over 18in of torque on the scope rings' screws Inside The Box Vector Optics · Dovetail Scope Mounts 25.4mm Adjustable Hex key