Clamp: chosen by the riflescope
The clamp sits on the objective tube of the riflescope and is chosen by its outside diameter, not by the lens diameter.
Technical Data
Product Information
| Item information | Value |
|---|---|
| Category: | OPTICS |
Clamp adapter · Modular system · Quick-release
Rusan MAR Modular Clamp Adapter with Quick-Release Lever
Modular clamp adapter MAR by Rusan with quick-release lever for the riflescope objective tube, in 55 sizes from 30 to 80 mm, including rail versions and short versions (MAR-SH). A complete adapter needs an MCR connector matching the clip-on device.
30–80 mmClamp diameter (objective tube)
Quick-release lever (QR)Closure
MCR connector separateFor a complete adapter
Versions
Choose by the outside diameter of the objective tube (not the lens diameter). Regular sizes are given in millimetres, rail versions with the Rusan code (for example 30ZM-1) and short versions with the suffix “short”. Only the selected clamp is supplied; the MCR connector is a separate item.
Modular Rusan system
Clamp plus connector make the adapter
The modular Rusan system has two parts: the clamp for the riflescope (MAR, MAR-SH or MAR-FX) and the MCR connector for the clip-on device. Rusan states that both have to be combined to have a complete system.
Connector: chosen by the clip-on device
The connector matches the thread or bayonet of the clip-on device. A P at the end of the product code means a built-in orientation (rotation) of the device, according to Rusan.
Locking
The locking nut of the clamp is turned to UNLOCK, the connector is put into the slots and the nut is turned to LOCK. According to the instructions one finger with moderate feeling is enough.
Advantages according to Rusan
One clip-on device on several rifles, one rifle with several clip-on devices, exchanging between rifles and devices without losing precision, and fast mounting and dismounting in the dark.
Features in practical use
Quick-release lever (QR)
MAR is the Rusan clamp with quick-release lever; according to the instructions for the sizes up to 44 mm it opens and closes with one finger and holds calibres up to .338 Lap. Mag. (tested by Rusan).
Size by the objective tube
Rusan marks the clamps with the outside diameter of the objective tube, not with the lens size. Every clamp can be adjusted by +/- 0.2 mm, not more.
Rail versions
For riflescopes with rail Rusan lists the codes 30SR-T, 30ZM-1 to 30ZM-4, 34SR and 36ZM; which riflescope belongs to which code is stated in each version.
Short version MAR-SH
The short version MAR-SH has a 24 mm clamping length; most MAR sizes have 37 mm, 30 up to 34 mm and the codes 30SR, 30ZM and 36ZM have 27 mm.
MCR connector required
The clamp is only one half of the system: according to Rusan a complete adapter also needs the connector (MCR) that matches the thread or bayonet of the clip-on device.
Mounting according to Rusan
For the sizes up to 44 mm the M5 main screw (4 mm hex key) and the set screw are tightened with 1.4 to 1.6 Nm each; from size 45 the lever and main screw have a right-hand thread as standard according to the Rusan catalogue. Rusan's instruction sheet is available as a PDF download for the sizes up to 44 mm.
Matching items
Without an MCR connector the adapter is not complete: the connector is chosen by the thread or bayonet of the clip-on device. The fixed version with three screws (MAR-FX) is a separate Rusan product.
* Firearms, mounts and other accessories shown are not included unless expressly listed. The selected item variant and the described scope of delivery are decisive.
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Manufacturer according to GPSR
Rusan
Rusan
