Optilock Sako Extended Base

• Extended base layout: The longer base profile gives more room to position a riflescope correctly, which helps when matching eye relief to different scope lengths and shooting positions.
• Steel construction: A steel base provides the rigidity needed for a stable optic interface, helping the scope stay aligned under recoil and repeated field use.
• Made for Sako actions: This base is built around the Sako receiver pattern, so it suits a wide range of compatible Sako rifles without relying on generic fit solutions.
• Low 8.00 mm base height: The restrained base height helps keep the optic closer to the bore, which supports a more natural cheek weld and a more consistent shooting position.
• Fixed mounting solution: A fixed base keeps the setup simple and robust, making it well suited to hunting rifles and general-purpose scoped rifle builds where repeatable mounting matters.

About the Optilock Series

Optilock is the optics-mounting line developed for Sako and Tikka rifles, covering bases, rings and related mounting solutions for rifles with different receiver interfaces. Within the range, Optilock products are intended for shooters who want a mounting system matched to the rifle rather than a universal compromise. The series includes solutions for traditional dovetail-equipped rifles as well as models that use Picatinny-style interfaces, allowing the system to serve classic hunting rifles and more modern scoped setups alike.

A defining characteristic of the series is its emphasis on steel construction and secure mechanical fit. Optilock rings are also known for using polymer inserts around the scope tube, which spread clamping pressure more evenly and help protect the scope from marking during installation. Across the family, the design philosophy is straightforward: keep the optic firmly in place, preserve alignment, and offer enough size and height options to suit different riflescope dimensions. That makes the Optilock series a practical choice for hunting optics and traditional bolt-action rifle setups where durability, repeatable fit and clean integration with the rifle matter more than unnecessary complexity.

About the Optilock Sako Extended Base

The Optilock Sako Extended Base is a fixed steel mounting base made for shooters who need a secure optic platform on compatible Sako rifles, while also benefiting from additional mounting length. That extended layout is the key difference in use: it gives more flexibility when positioning a riflescope, which is especially helpful with scopes that have shorter main tubes, longer eyepiece sections or eye-relief requirements that do not line up perfectly with a standard base. In practice, that means an easier path to a comfortable head position and a more natural sight picture.

The base is built from steel, a sensible material choice for a component that must hold zero and resist movement under recoil. For a hunting rifle or a general-purpose scoped rifle, that added rigidity supports long-term stability and dependable alignment between rifle and optic. The listed 8.00 mm base height also helps keep the mounting arrangement relatively low, which can improve cheek weld and reduce the feeling of having the scope sit too high above the bore.

Because it is designed around a broad set of compatible Sako actions, this base suits shooters who want a model-specific mounting solution rather than adapting a more generic rail. The result is a clean, durable interface for traditional hunting optics setups where reliable fit and practical scope positioning are the main priorities.

About Optilock

Optilock is Sako’s line of rifle scope mounts, bases and rings, developed specifically for Sako and Tikka rifles. The range is built around the idea that the mounting system should match the rifle’s interface and intended use, rather than forcing a one-size-fits-all solution. Within the lineup, Optilock bases are offered for compatible receiver types including dovetail and Picatinny rail configurations, giving the system broad relevance across traditional and modern rifle platforms.

In construction, Optilock products are known for their machined steel design, with versions made from CrMo alloy or stainless steel depending on the model. The ring system is particularly well known for its polymer inserts, which distribute clamping force around the scope tube and help reduce the risk of marking the optic. Different ring diameters and heights are available across the series, allowing the mounting setup to be matched more precisely to the scope and rifle combination.

Main Features

• Manufacturer: Optilock
• Product type: Extended base
• Material: Steel
• Base height: 8.00 mm
• Made in: Finland
• 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

2 years. The Optilock Sako Extended Base is covered by a two-year warranty period.