Ok, so with the 5th generation of Glock family handguns hopefully around the corner soon (crosses fingers in anticipation) I am writing an article about the 4th gen problems we had, what… early 2011? If I remember correctly, they were mostly Glock 17 models, although some smaller batches of the 19, etc. had been affected by the dreaded original RSA (Recoil Spring Assembly) and a few extractor problems I think. I had hoped that by now all the Gen 4 Glock are running smoothly, and with a little research on the forums I found this, was for the most part, the case. Luckily, my particular specimen of Glock 17 Gen4 was shipped with the updated parts:
Installing these two parts on Gen4 Glock 17 handguns seem to have fixed nearly every case of “Brass on my Face” and “Brass down my Shirt” I have read of. Some owners still had a few issues, but for the most part it looks like the Gen 4 problems were resolved quickly and with lots of free parts being shipped from Glock support here in the USA.
While this is not my primary defensive firearm, and I purchased it years ago mostly for the tests (Some of which I will post in retrospect) I have have complete faith it the design and have only had a handful of stoppages occur, all of which have been either user induced or ammo related.