Sako Optilock 11MM Rimfire Scope Base Set - Blued This Sako Optilock scope base set will fit any Sako rimfire rifle which utilizes an 11MM dovetail mounting system. The Sako Optilock rimfire bases use standard Sako Optilock rings. Included in this kit are the following items: (2) 11MM Sako Optilock scope bases(2) Torx ring mounting screws(1) Torx dovetail lock screw with washer(2) Torx wrenches This scope base set will fit older Sako P94 and Finnfire rifles as well as the newer Sako Quad models. This base set will also work on any rimfire rifle that uses an 11MM dovetail scope mounting system. Do not settle for anything but the best for your Sako rimfire rifle. Sako Optilock bases are the best bases that you can buy for your Sako rimfire rifle. Style number: S11862354