I have an Aero-Tek ghost ring on my Glock 36. The first ghost ring for a handgun I tried was on a blackhawk. I found, and it may all be in my head, that it was much easier for me to acquire a good sight picture. I always have had problems with blade and notch sight setups even on long guns, but aperatures seems to work well for me. I use them on any guns I don't have scopes on. Although one time I was in a gun store and the guy behind the counter told me that aperatures on a handgun just are a waste of time. I don't think that ghost rings are for everybody, but then no sight works for everyone. I would say give them a shot and decide for yourself.