Originally Posted by sessumrd
I installed the I dot Pro sights on my 21 a few months ago. It is really an easy install, and does not require a pusher. All I did was mount the slide in a vise, with 2 strips of cork taped.to the jaws, so it wouldn't scratch, and tap the rear sight out with a brass drift punch. Then all you do is tap the new one in. You will want to test fir to confirm poa and poi are consistent before putting red locktite on the set screw, but it is a very simple install overall. I know you will appreciate the greatly improved sight picture.
I didn't see a set screw on the back site. The back sight was a very tight fit on my G30SF. I wonder if they may be a different design based on the model?
I'll try it out at the range tonight to fine tune it, then hit it with a little red loctite just for some peace of mind.