Sako Optilok Scope Mount Base
Sako Optilok Scope Mount Base is precisely machined out of solid steel to ensure perfect mating with Sako’s integral receiver scope mount rails or Weaver (Picatinny) rails and optimal scope alignment.
Optilok scope mount bases come clamshell-packed in pairs. All the parts required for assembling bases to receiver and rings to bases are included (plus hex key).
The size of base that you need can be determined by the caliber of your rifle and corresponding action type.