BSA Optics Sweet 17, Rifle Scope, 3-12X40, 1", 30/30 Duplex Reticle, 17 Caliber, Adjustable Parallax, Matte Finish S17-312X40

The Windage and Elevation turrets have zero reset with Allen screw. Each model in the Sweet 17(TM) series have a side adjustable parallax setting of 10 to infinity. (With the exception of the model S17-27x32 which is 7.5 to infinity)