Rusan MAR-FX Modular Scope Clamp – Scope Side

The Rusan MAR-FX modular scope clamp is the day-optic-side component of a Zentron C Series clip-on adapter setup. It secures to the objective housing with three screws.

Start with the connector ring: Zentron C35, C50 and C50R use an M45 × 0.75 eyepiece thread and require the matching Rusan MCR-M45P connector ring on the clip-on side.

Choose the clamp size: Measure the actual outside diameter of the objective housing at the approved clamping location. Do not use the nominal lens diameter printed on the optic.

The MAR-FX clamp and connector ring are separate system components. This clamp cannot be used alone; confirm kit contents before ordering.

MEGA compatibility: This modular adapter component is for Zentron C Series. MEGA devices cannot use these Rusan or Smartclip adapters; use the MEGA mounting system instead.