In my opinion if you ever plan on taking the pistol apart the CGW floating trigger pin is well worth it. It is retained by the Trigger Return Spring located at the center of the pin. This allows it to be pushed out of place with a standard punch and a tap with a hammer.
The factory trigger pin is retained by staking at the ends of the pin. To keep it in place you can restake the end that is allowing it to slip out of place.