That's about it. I'm trying to find out if anyone with the PPQ that has meprolight tru-dot sights has measured the sights. I spoke to a rep that gave me some measurements that don't seem to be possible and I had already ordered them.. Here is what he gave. blade height rear (.335) Front (.256) he gave them in MM 8.5mm 6.5mm..but I translated into a legitimate measurement. If what he said is correct this must be for an anti-aircraft model.