It’s an old problem. Make a radical adjustment to your scope’s elevation settings, perhaps even through two turns of the knob, and returning to your zero setting can be almost impossible…especially under stressful situations or in bad lighting.
Other manufacturers have tried various means to solve this problem, with less than satisfactory results.
The Nightforce ZeroStop™ is the solution. A solution so good, so simple and so effective, it is patented.
After sighting in your rifle, simply set the ZeroStop™, and you create a positive mechanical stopping point at your chosen zero point. Then, no matter how many elevation adjustments you make, turning the elevation knob down to the ZeroStop™ setting returns you to your original zero, completely by feel—even in total darkness or while wearing gloves. No counting clicks, no need for visual reference, no wasted effort.
Just an instant return to zero. Every time.
ZeroStop™ is optional on 1-4, 2.5-10, 3.5-15, 5.5-22 and 8-32 NXS riflescopes; standard on F1 models and the 5-25 x 56 ATACR™. Available in .250 MOA and .1 Mil-Radian adjustments. Visit NightforceOptics.com for video instruction on setting your ZeroStop™
Setting ZeroStop™ takes only a minute or two and an Allen wrench (which we provide). The elevation adjustment cap removes with two set screws.
Loosen four Allen head screws (may differ by model) on the clutch assembly, snug the upper clutch face against the lower clutch face, retighten the screws and reinstall the cap. You’re done.