Glock sight works just fine in Ruger LCP-C, raises the point of impact an inch.one, and is easier to see than the Ruger sight. The Glock sight extends the sight radius a smidge forward. The Glock sight has a better, longer screw, that goes clear through the Glock sight verticle ending dead flush with the top.
NO JOY with HiViz G2009 front sight I use on Glocks. Waste of Amazon and a mad wife.
Slide milling inside in front end top of LCP-C has a perfect Glock oval cut. The Ruger sight fits tightly and has a screw hole centered in the middle of the oval insert.
The Glock plastic front sight is a perfect fit in the oval and has the screw hole centered in the bottom of the oval. It just has to be slightly reduced in how deep the insert sticks into the slide so it is flush and does not stick through the slide preventing the screw from snugging on the slide underneath.
The screw for either the Ruger or Glock sight installs easily as the holes are centered where the slide milling provides a circle for the hex driver to fit.
The HiViz sight is a waste
It is loose in the oval rotating left and right unless EpoxySteeled in place.
Worse, is that the HiViz sight has the screw hole drilled off center toward the rear so far the hex driver cannot enter the slide milling circle and so the screw cannot enter the hole nor would the screw snug up against the flat surface under the slide. It would instead hit the side of the milling circle for the hex driver.
The HiViz sight will also be a slop fit in a Glock slide. Not the first time I have gotten them under sized and sloppy letting the Glock HiViz G2009 sight rotate in the Glock slide until EpoxySteeled in the slot and to the slide.
Ruger front works, obviously.
Glock plastic front is a better replacement.
HiViz is a waste.
I may try a Glock Steel front screw type sight just for grins.
And durability.