The CZ direct fit upgrade is engineered specifically for the 19mm 550/557 integral dovetails. Warne's Maxima CZ rings are constructed from solid steel and feature a vertically split design, capable of withstanding severe recoil and supporting large, heavy scopes. Due to the unique mounting rail designs of each firearm manufacturer, each ring model is precisely machined to ensure accurate fit and functionality. Consequently, Warne CZ rings can be directly mounted onto the receiver's dovetail without requiring an additional mounting base. The CZ quick detach rings are for use with the CZ 550 receiver design (19mm dovetail) and are secured using four T-15 Torx-style socket cap screws, ensuring a stable and permanent optics installation. This component securely mounts onto the dovetail of a firearm, ensuring a stable and precise fit for optimal performance and alignment The Maxima QD rings ensure a guaranteed return to zero, allowing for rapid detachment and reattachment without compromising the zero setting The CZ-specific recoil key is designed to ensure a secure and positive engagement between the ring and the receiver's dovetail, enhancing stability and performance The rings are securely mounted around the scope using four Torx-style T-15 socket cap screws, ensuring a stable and reliable attachment