Product DescriptionSteiner T-Series Rings are engineered as the foundation of a precision shooting system, delivering precise optical alignment and repeatable accuracy. Machined from rugged, lightweight aluminum alloy with a matte black finish, this extra-high 30mm ring set mounts securely to any Picatinny-style rail. The rear ring integrates a bubble level to enhance consistency shot after shot, and the rings are proudly designed, machined, and assembled in the USA.Product Highlights 30mm extra-high ring set ideal for precision rifle optics Aluminum alloy construction for strength with minimal weight Picatinny rail compatibility for easy, secure mounting Integrated rear-ring bubble level for improved accuracy and consistency Matte black finish to reduce glare; ring tops drilled and tapped (34mm models only) for reflex/riser accessories Specs Product Type: Scope Ring Set (Pair) Tube Diameter: 30 mm Mount Type: Picatinny rail Height: Extra High Material: Aluminum alloy Finish: Matte Black Country of Manufacture: USA Torque Specs: Ring top screws 25 in-lb; Base cross bolt 60-65 in-lb UPC: 000381859631 Manufacturer Part Number: 5963 Brand: Steiner Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&&';;s manufacturer.