I tried this tool out on several of my pistols result useless , you cannot apply enough pressure on the plate that touches the sight to move it , none of mine moved not even a fraction , on top of that the threads on the base plate I had to retap them to make them easy to work with. In all I was very disappointed with this product don't buy it.
Everything has been well received. Good quality, no damage. I tried the device directly on my GLOCK 34. It works perfectly. I am satisfied, that is why I recommend this seller. Thank you Chinese friends