Williams Fire Sights are fiber optic light gathering sights that offer high visibility, improved sight picture and fast target acquisition. Gunsmith installation is recommended. Does not include a replacement front sight screw, must re-use factory screw.
Williams advises that this sight will not fit "late model" PT111, PT140, PT145, they did not have specific serial number information to determine early or late model guns. If the firearm has two dovetails (as used on Heinie sights) these will not fit. Please note the photo and compare attachment with the existing sights on the firearm.