re: Where can I find a g19 3rd generation?

1. There's nothing wrong w/ a Gen 3. My wife and sons carry them. I carry a Gen 2 simply because I started carrying G19's before there was a Gen 3.

2.All of the "early" Gen 3'w had Tenifer finish. Glock changed to a different finish in 2012 when the EPA got involved (the gun components were made in Austria and assembled in Smyrna, GA.)

3. I don't think there's a significant difference in today's finish vs. the Tenifer.

4. I didn't click on the links in the replies you received, but presumably someone referred you to Gunbroker. They had plenty the last time I looked. If the price of NIB Gen 3's is too high (Usually $500 - $550), look into buying a used one. Glock (in Smyrna) will inspect any used Glock you send them, replace any worn parts, replace any parts that have been re-designed since the date the gun was made, and return it to you (along with any parts removed) -- all at zero cost to you (other than your cost for shipping it to Glock).