Other Details Manufacturer: Ruger / Sturm, Ruger & Co. Manufacturer Part Number: 90287 Adjustable Objective: False canDropship: True Color: Silver Country of Origin: US Description: Sold Individually Dimension: 1.10 X 2.70 X 5.15 Drilled and Tapped: False Finish: Silver Illuminated Reticle: False Material: Steel Model: Standard Product Type: Accessory-Rings/Mounts/Bases Scope Cover Included: False Size: 30mm Extra High Subcategory: Rings Tube Diameter: 30mm Tube Size: 30MM