The Rusan adapter for Clip On Thermal Attachments is the best adapter made!
The adapter features a silent clip-on whereas the adapter has internal rubber-based tape that enables the hunter to mount the clip on silently. Suitable for INFIRAY, LEICA CALONOX, BURRIS, GUIDE and with a reduction ring, PULSAR AND HIKMICRO.
In addition, the Rusan adapters have been built with accuracy in mind. Other adapters use inlets which overtime will cause inaccuracies and loose zero. The Rusan adapters are designed to not require inlets. The adapters only have a 0.02mm adjustment, therefore, it is especially important to measure the correct outside diameter of your day-scope in order to purchase the correct adapter for your specific scope.