While at the range today, the Truglo Tritium front sight came off of my Glock 19. Looked around my bay and downrange but couldn't find it. Range Officer said the last time he had seen it happen, the sight went behind the shooter. Sure enough, he found it about 10 feet behind me. The sight looked to be in good shape. Fortunately, the gun shop where I purchased the sights and had them installed was just down the street from the range. One of the gunsmiths was quickly able to re-install.