The Leupold Open Range Rimfire 30mm scope rings are engineered for reliable performance and rugged durability, making them ideal for rimfire setups with 11mm or 3/8-inch dovetails. Constructed from lightweight 6061-T6 aluminum, these rings feature milled-in recoil lugs and low-profile keeper screws for a secure and stable connection between your scope and firearm. With a medium height and sleek black finish, they offer a clean profile while ensuring proper alignment and support for 30mm scope tubes. Made in the USA, these rings are built to endure a lifetime of use without compromise.