Rusan MAR-M52 - MCR-M52 bayonet converter insert kit - for M52*0,75 clip-on bolt threads
Rusan MAR quick release clamping adapter intermediate insert with bayonet holes for receiving the MCR side with bayonet pins. This part needs to be used with the other side called MCR for allowing to join different daytime riflescopes with separate front lens tube diameters to one specified clip-on in mere one moment and with only one-fourth rotation of the clip-on.
