Rusan Rear base for pivot mount, Mauser: M12 (sr. nm. <30000)

• Model-specific fit: Made as the rear base for the Mauser M12 up to serial number 29999, this base matches the rifle’s receiver geometry so the pivot mount system can be installed correctly and repeatably.
• Steel construction: The steel body provides the rigidity needed to keep the rear mounting point stable under recoil, helping the optic stay aligned over long-term use.
• Pivot-mount compatibility: As part of a Rusan pivot mount setup, this rear base supports a mounting system valued for secure attachment and practical removal and reinstallation of the scope.
• Low-profile design: A dedicated rear base keeps the mounting interface compact and close to the action, which helps maintain a clean rifle profile and sensible scope positioning.
• Protective black finish: The black finish gives the base a subdued appearance and adds surface protection suited to regular field use on hunting rifles.

About the Pivot Mount Series

Rusan pivot mounts are built for shooters who want a traditional steel mounting solution with dependable fit across a wide range of rifle platforms. In the company’s lineup, these mounts sit alongside scope rings, Picatinny rails, and other firearm mounting components, serving users who prefer a dedicated rifle-specific interface rather than a universal rail conversion. The system is especially relevant for hunting optics, where a secure lock-up, repeatable positioning, and a tidy overall profile matter as much as raw strength.

The series is defined by its model-specific front and rear bases, which are matched to individual rifle actions, and by its use of robust metal construction for long service life. This design approach allows the mount to follow the geometry of the rifle more closely than generic solutions. In practice, that means a cleaner installation, reliable support for the optic, and a mounting arrangement suited to rifles that may be carried extensively in the field. For shooters building a complete pivot setup, the series offers a structured, rifle-by-rifle approach that prioritizes fit, mechanical stability, and compatibility within the Rusan mounting system.

About the Rusan Rear base for pivot mount, Mauser: M12 (sr. nm. <30000)

This Rusan rear base is the rifle-specific rear mounting component for a pivot mount installation on the Mauser M12 up to serial number 29999. Its main advantage is not complexity, but precision of fit: a base made for the exact action pattern gives the mounting system the correct rear support point, which is essential for proper alignment and secure engagement of the complete pivot assembly. For a hunting rifle, that matters because the mount must remain stable through recoil, transport, and repeated handling without introducing unnecessary movement at the rear interface.

The use of steel construction is particularly important in this role. The rear base carries load from the optic and mount during firing, so stiffness and wear resistance directly affect long-term consistency. A steel base is well suited to a rifle that may see regular field use, seasonal scope changes, or extended service life. The black finish keeps the appearance discreet and appropriate for classic sporting rifles while also helping protect the surface.

As part of a complete Rusan pivot mount, this rear base is intended for shooters who want a dedicated mounting solution rather than a generic adapter approach. It is a practical choice for Mauser M12 owners using serial numbers below 30000, especially where correct model matching is critical to achieving a solid, repeatable optic installation.

About Rusan

Rusan grew out of the Rusan family’s metalworking business, which dates to 1983. The company is based in Marija Bistrica, Croatia, and focuses on precision-made components for sporting and hunting firearms. Its product range covers scope mounts, scope rings, Picatinny rails, and firearm tuning products, reflecting a strong specialization in the mechanical side of optic installation.

The company is also known for products that connect modern observation devices to traditional optics platforms. Rusan introduced its clip-on sight adapter clamp in 2009 and produces adapter solutions for night-vision and thermal-imaging devices as well as conventional riflescope mounting hardware. That combination of classic mount production and practical adapter design has made the brand well known among shooters who need reliable fit between rifles, optics, and add-on sighting equipment.

Main Features

• Manufacturer: Rusan
• Product type: Rear base for pivot mount
• Compatibility: Mauser M12 (sr. nm. <30000)
• Material: Steel
• Color: Black
• Made in: Croatia

Warranty

10 years. This product is covered by a ten-year warranty period, making it a suitable choice for a long-term rifle mounting setup where durability and mechanical reliability matter.