Osuma Sako QD Base

• Quick-detach base design: The Osuma Sako QD Base provides a stable platform for quick-detach scope mounting, making it practical for rifles that alternate between different optics or sighting setups.
• Steel construction: A steel body adds the rigidity and wear resistance needed at the mounting interface, helping the base stand up to repeated attachment cycles and field use.
• Low 9.50 mm profile: The 9.50 mm height keeps the optic close to the bore, which supports a more natural shooting position and helps maintain a tidy, well-balanced rifle setup.
• 0 MOA inclination: With 0 MOA built in, this base suits general hunting and sporting rifle applications where a neutral mounting angle is preferred.
• Broad Sako compatibility: It fits a wide range of Sako 75, Sako 85, L-series, M-series and TRG-S rifles, making it a practical choice for shooters working across several classic Sako actions.

About the Osuma Sako Series

The Osuma Sako mounting range is built for shooters who need a secure optic interface on Sako rifles without adding unnecessary bulk. Within Osuma’s lineup, these bases and mounting components focus on model-specific fit, straightforward installation and dependable mechanical support for hunting optics and sporting rifle setups. The series is aimed at users who value a clean, low-profile mounting solution that matches the receiver correctly and keeps the optic aligned under regular field use.

Across the series, the emphasis is on practical rifle-scope mounting rather than cosmetic complexity. Materials and dimensions are chosen to provide a solid connection between rifle and optic, while the overall design remains compact enough to preserve handling. For Sako owners, that matters because receiver geometry and action size can vary across generations and models. A dedicated base from the series helps maintain proper fit and supports repeatable positioning when paired with compatible rings or quick-detach hardware.

About the Osuma Sako QD Base

The Osuma Sako QD Base is designed for shooters who want a robust base for a quick-detach scope mounting setup on compatible Sako rifles. Its role is simple but important: it creates the foundation that allows the optic mount to sit securely on the rifle while keeping the overall system compact and mechanically stable. That makes it well suited to hunting rifles that may carry different optics depending on season, terrain or shooting distance.

The use of steel is a key part of the design. In a mounting base, material choice affects long-term durability more than headline specifications. Steel resists wear at the contact points and helps the base maintain its shape under repeated mounting and removal, which is especially relevant in a QD system. The matte finish keeps the appearance subdued and appropriate for field rifles, while the 9.50 mm height supports a low-mounted optic position that generally improves cheek weld and keeps the rifle feeling natural in the shoulder.

Its 0 MOA inclination makes this base a straightforward choice for conventional zeroing distances and general-purpose use, where a neutral rail angle is preferred over a built-in cant. Compatibility is another strength: this base covers a broad spread of Sako actions, including several Sako 75 and Sako 85 variants as well as classic L-, M- and TRG-S models. For shooters maintaining older rifles alongside newer ones, that broad fitment makes the base especially practical.

About Osuma

Osuma is a Finland-based brand focused primarily on rifle scope mounting. Its history goes back to the early 1990s, when the company’s owner developed the first mounts to meet his own hunting and benchrest shooting needs. The business later passed from father to son, giving the brand a clear family continuity within a specialized part of the shooting industry.

Today, Osuma’s range covers scope mounts, rings, rail mounts, red-dot and holosight mounts, as well as suppressors. The company is particularly associated with practical mounting solutions for systems such as 11 mm, Tikka 17 mm, Sako, Picatinny, Optilock and Blaser. Its products are designed and manufactured in Finland, reflecting a strong focus on fit, function and compatibility for sporting and hunting rifles.

Main Features

• Manufacturer: Osuma
• Made in: Finland
• Production since: 2022
• Warranty: 10 years
• Material: Steel
• Color: Matte
• Height: 9.50 mm
• Inclination: 0 MOA
• Compatibility: Sako 75 I, Sako 75 III, Sako 75 IV, Sako 75 SM, Sako 75 V, Sako 85 L, Sako 85 M, Sako 85 S, Sako 85 SM, Sako 85 XL, Sako 85 XS, Sako L461 Vixen, Sako L579 Forester, Sako L61R Finnbear, Sako L691, Sako M591, Sako MA 05 L, Sako MA 05 M, Sako MA 05 S, Sako MA 05 SM, Sako MA 05 XS, Sako S491, Sako TRG-S M995, Sako TRG-S M995 Magnum, Sako VL63 Finnwolf

Warranty

The Osuma Sako QD Base is covered by a 10-year warranty.