Rusan reduction ring for ARM52 adapter is a special connector necessary for attaching a Pulsar night vision cap to the adapter bracket.
Dedicated reduction ring for Rusan adapter
In case you have a cap with a thread other than M52×0.75, its mounting to the scope in addition to the Rusan bracket adapter requires a special reduction ring. Rusan reduction rings are available in our offer for the most popular models of thermal and night-vision caps. Mounting the ring to the Rusan adapter takes just a few seconds and requires no tools.
The ring is dedicated to selected models of Pulsar night vision caps: F135/F155/FN455
