Vortex Optics Tactical 30mm Riflescope Rings Description Features: Robust 6-screw Tactical Ring is perfect for mounting red-dot optics, magnifiers, and other accessories with 30mm tube diameters to your Picatinny rail. When using this ring to mount a conventional riflescope, we strongly recommend lapping the rings for a proper and secure fit for your optic. This Vortex Tactical Ring positions the center of the riflescope tube at a height of 0.97 inches (24.6 mm) from the base. Sold one ring per package. Product Details: Brand: Vortex Color: BLACK Style: Medium (0.97 in) - 1 Ring Sport: Hunting Item Weight: 0.2 Pounds Material: Aluminum Magnification Maximum: 8 Objective Lens Diameter: 30 months Compatible Devices: Rifle Mounting Type: Picatinny Mount Brand: Vortex Color: BLACK Style: Medium (0.97 in) - 1 Ring Sport: Hunting Item Weight: 0.2 Pounds Material: Aluminum Magnification Maximum: 8 Objective Lens Diameter: 30 months Compatible Devices: Rifle Mounting Type: Picatinny Mount Night vision: No Item Package Dimensions L x W x H: 3.82 x 2.91 x 2.6 inches Package Weight: 0.18 Kilograms Item Dimensions LxWxH: 2.8 x 1.9 x 1.2 inches Brand Name: Vortex Model Name: Scope Rings Suggested Users: unisex-adult Number of Items: 1 Manufacturer: Vortex Optics Part Number: TRM Model Year: 2015 Included Components: Set of Rings Size: Medium (0.97 in) Hand Orientation: Ambidextrous Date First Available: April 9, 2013