Leupold Standard 30mm Rings Medium Silver Designed to withstand even the heaviest recoiling rifles, Leupold Standard Rings are constructed of Stronger than aluminum, steel rings are perfect for locking your scope solidly into place The front ring is dovetail style while the rear is windage adjustable Leupold Standard Rings are ideal for use with Leupold Standard Bases Specifications: - Ring Style: Standard - Height: Medium - Tube Diameter: 30mm - Material: Steel