I have a G23 that came with Glock night sights. I cannot remove the front sight using the Glock front sight tool. I have no problem removing the plastic sights on my other glocks. I ended up buying a 3/16" craftsman wrench and found that the hex screw is actually smaller than 3/16" so that is why my Glock tool is also not working. Any ideas on how to remove the front sight without breaking the sight itself? I have extra hex screws from the plastic sights so I don't mind breaking the screw. Thanks!