Good point, Mike. Also, just before pushing one out, I always try to start on the end that is recessed into the hole more just in case a previous owner hammered on one side with a steel mallet and slightly flattened the end but managed to get it flush. Then if a second, unsuspecting owner comes along and wanted to push it out to pop in those Bowen sights, he may end up pushing through the wrong way. I try to look at a newly acquired (preowned) revolver for tell-tale marks of sight removal and give a gentle tap on both sides to see which direction it might come out easier. I'm not a gunsmith, but I do like guns that fit my hands and sights that work for me, so I'm always swapping sights and grips.