On that model it does not move. They are designed like new scopes. On the model 1 style you can see the post move as you turn the Knobs. I back out the locking screw for the small metal bracket and turn them 360 to make sure they work. On the older scopes sometime they stick and won't move. The clicks are also "finer" on the ZF making it much better plus you can illuminate it for $20.