- Genuine Optilock factory scope bases for Sako long-action rifles — Actions 4 and 5 (Sako 85, 75, L61R series)
- Precision machined from solid steel with a traditional blued finish — matches the rifle's factory metalwork
- Sold as a pair (front and rear base) forming the dovetail rail for Optilock ring systems
- Allows horizontal adjustment of the scope objective end for precise scope positioning
- Compatible exclusively with Sako's proprietary dovetailed receiver — not a universal Weaver or Picatinny fitting
- Assembly hardware and hex key included
- Part number S1A067759 — genuine Sako/Beretta accessory
The Optilock bases (S1A067759) are the genuine factory-fit scope mounting bases for Sako long-action rifles, covering Action 4 and Action 5 models including the Sako 85, Sako 75 and L61R series. Precision machined from solid steel and finished in a traditional blue, they attach directly to Sako's receiver and provide the dovetail rail that Optilock rings clamp onto. The bases are designed as a pair — front and rear — and the system allows some horizontal adjustment of the scope's objective end without disturbing the scope's internal settings, a useful feature when setting up on a new rifle. Assembly hardware and a hex key are included. These bases are the correct underpinning for any Sako long-action rifle owner running Optilock rings, and are sold exclusively for use with Sako's own proprietary dovetailed receiver. The blued steel finish matches other Sako factory accessories.
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