I've got a set of Ameriglo Operators on my G19Gen4. I just ran 115 rounds through it yesterday (approximately 780 total by now) and I noticed this morning, while doing some dry fire practice, that the tritium vial had started drifting out. Fortunately/unfortunately I was able to push it back in with my thumbnail so that its flush again with the front sight face. Has anyone ever experienced that before?
Attached is one image showing the tritium vial starting to poke out. The other is a picture of after I was able to push it back in with my thumbnail. It didn't seem to take much effort at all for it to go back in. I probably only have around ~600 rounds through the sights.