imported post
Are Tricon night sites better then Trijicon night sites?
I had to do that...
And Trijicons are $72-$100+ depending on how/where your getting them.
It might also help to see if you can see the date on the sites. If the sites came with a gen 2 Glock (over 10 years ago) then they should be at there half life meaning there about half as bright. So if they are newer then that's a very big plus.
You can find out alot of info about your Glock 22 at
http://glocktalk.com/forums/showthread.php?t=412093
Just searching the prefix of your serial number (first 3 letters) you should be able to find out what month and year it was made in and the generation. Also there are pictures to help you find out what generation it is.
I hope that helps.
And as far as round count goes I would choose to buy a used one as people have already tested it(not that it needs it). Anything that goes out with lots of shooting (if anything) can usually be replaced for under $10 a part.