i picked up a glock 19 2nd gen that the frame had been hacked to accept g26 mags. i didnt like it at all and i called glock they said send it in. i did and they sent me a new 3rd gen frame and put all new internals in the slide. plus they returned shipped in on their dime, total cost for me was $43 bucks. cant beat that as far as i am concerned, thanks Glock.
I had a run in with Glock's customer service a while back. The extractor on my 2nd gen Glock 19 was broken, so I took it to my ex-gun shop who sent it back to Glock for me. When it was sent it in, it had some Glock night sights that were starting to dim a bit, and when I got it back, they basically refurbished the entire gun and put new nights sights on, all at no charge.
I now know how to change the extractor myself, but am glad I didn't then just for the new night sights.
i forgot to mention also that the G19 was only gone for 12 days. they orginially told me 4 to 6 weeks before i would get it back. i called yesterday morning to get an update and the guy said we shipped it friday so it should be there today.