The CZ Rings 457/455 1in 11mm Dovetail Aluminum Base, Matte Black, Medium height, from CZ is a precision mounting solution designed for rifles that use 11mm dovetail receivers. Built from durable aluminum, these rings provide a secure, uniform optic mounting platform with a 1" inner diameter to accommodate standard scope tubes, while the medium height places an appropriate centerline for many hunting and target setups. The product is specified for a dovetail mount type, ensuring compatibility with common sporting and precision rifles that feature 11mm dovetail slots, and the 0.575 inch base height positions the optic for optimal alignment with the rifles bore axis, aiding accurate aiming and quick target acquisition. Designed to support reliable repeatable mounts, these rings maintain rigidity under recoil and temperature variations, contributing to consistent zero retention in strenuous field conditions. With CZs reputation for quality machining and finishes, this pair offers a clean Matte Black aesthetic that resists surface wear while blending with a variety of stock finishes. Ideal for users seeking a dependable, mid-height mounting option for 1" optic tubes on 11mm dovetail receivers.