Dentler Base rail BASIS - Steyr Mannlicher SM12 SL

• Firearm-specific fit: This BASIS base rail is shaped for the Steyr Mannlicher SM12 SL platform and related slim-action models, helping create a precise interface without improvised fitting work.
• Modular BASIS interface: The rail forms the rifle-side foundation of the Dentler BASIS system, so one optic mounting rail can be moved between compatible setups with repeatable positioning.
• Steel construction: A steel body gives the base the rigidity needed for secure optic support and long-term resistance to wear from repeated mounting and removal.
• Low 4.00 mm profile: The compact BH height of 4.00 mm helps keep the optic close to the bore, which supports a tidy rifle setup and natural handling.
• Matte black finish: The black matte surface keeps reflections down and matches modern hunting rifle builds while adding practical protection for field use.

About the BASIS Series

Dentler BASIS is the company’s core modular mounting family for hunters who want a fixed base on the rifle and a separate optic rail on the sight. The system is built around a simple idea: the firearm-specific base rail stays on the rifle, while the upper mounting rail stays with the optic. This makes it easier to configure one rifle for different tasks or to keep several optics ready in a consistent mounting format.

Within Dentler’s lineup, BASIS sits as the straightforward modular solution, while BASIS VARIO adds continuous height and windage adjustment. The standard BASIS concept focuses on a secure, repeatable connection with practical field handling. Dentler designs the rifle-side rails to match specific actions, which helps avoid ad hoc fitting and keeps the installation concept clean. The series is aimed primarily at hunting rifles and users who value a robust steel interface, low-profile mounting geometry, and compatibility with a broad range of optic mounting rails, including formats for red dots, riflescopes, and Weaver/Picatinny-based setups.

About the Dentler Base rail BASIS - Steyr Mannlicher SM12 SL

The Dentler Base rail BASIS - Steyr Mannlicher SM12 SL is a rifle-specific mounting base made for slim-action Steyr Mannlicher platforms, including the Steyr SM 12 SL, Steyr CL II SL, Steyr Mannlicher Classic SL, and Steyr Pro Hunter SL (After 2003). Its role is straightforward but important: it creates the lower half of the Dentler modular mounting system, giving the rifle a stable and repeatable interface for compatible Dentler upper rails.

The practical advantage of this design is flexibility without turning the rifle into a permanent one-optic setup. Because the base remains on the firearm and connects to the Dentler Mounts Interface, the rifle can be prepared for different optic configurations while keeping the mounting standard consistent. For a hunting rifle, that matters when switching between a conventional riflescope, a compact driven-hunt sight, or another compatible optic format built around the Dentler system.

Its steel construction supports long service life and secure clamping under regular field use, while the 4.00 mm build height helps maintain a low mounting position. A lower base profile can improve the overall balance of the rifle-and-optic combination and helps preserve a clean sight line. Finished in black matte, the rail also suits practical hunting use by keeping the appearance subdued and consistent with modern rifle hardware.

About Dentler

Dentler Jagdwaffen was founded in 2011 by Daniel Dentler. Based in Leutkirch im Allgäu, Germany, the company focuses on modular riflescope mounting systems for hunting firearms rather than general shooting accessories. Its best-known product families are BASIS and BASIS VARIO, both built around the idea of separating the rifle-side base from the optic-side mounting rail.

This approach has made Dentler particularly relevant to hunters who use more than one optic or more than one rifle and want a consistent mounting concept. The company offers rails for a wide range of firearm makes and optic interfaces, including formats for brands such as Aimpoint, Pulsar, Swarovski, Zeiss, and Weaver/Picatinny-based setups. Dentler’s reputation in this category rests on practical modularity, firearm-specific fit, and German-made mounting components designed for repeatable optic installation.

Main Features

• Manufacturer: Dentler
• Product type: Base rail
• Series: BASIS
• Compatible rifles: Steyr SM 12 SL, Steyr CL II SL, Steyr Mannlicher Classic SL, Steyr Pro Hunter SL (After 2003)
• Upper interface: Dentler Mounts Interface
• Material: Steel
• Color: Black - Matte
• BH height.: 4.00 mm
• Made in: Germany

Warranty

Dentler provides a 30-year warranty for this base rail. That long coverage period matches the product’s role as a durable steel mounting component intended for extended hunting use.