Ruger GP100 HiViz front sight clicking sound?

[Strong-Dog]

When I shake my gun, this sight makes a clicking sound for some reason. It isn't as solid in the notch as the stock front sight, but it has virtually no play and is very solid. Anyone have this issue?

 

[Cougar Allen]

Virtually no play????

If a sight moves a thousandth of an inch that makes a big difference downrange. If you can detect play it's moving a lot more than one thousandth. Deal with it!