Re: Night force Zero stop?
As mentioned, the exterior appearance can denote whether or not it is ZeroStop or not. The domed top of the knob and opposing dual set screws that secure the turret cap in place are the best indicators.
The ZeroStop turret is also slightly larger in diameter and in height.
The non-ZeroStop scopes have a flat across the top of the cap and only one set screw that secures them in place.