Please note: This text was taken directly from the manufacturer.
You can now attach other brands of telescopes or tube ring systems that use wide male mounting bars to an Orion mount. Our new narrow to wide adapter plate will attach to the saddle of a mount that uses the narrow-style dovetail system (such as the SVP/Sirius/Atlas mounts) and convert it to the wide saddle, which accepts the wide dovetail bars. You'll have more versatility with an affordable Orion narrow to wide dovetail adapter plate. The adapters are spring loaded, with an e split-clamp design with two large hand knobs. This design allows the saddle to be opened wide for easy drop-in attachment of the dovetail bar. The adapters are CNC machined throughout. No tools are need for installation. One-Year Limited Warranty