This is not a question but rather a fix for the problem. I have been all over the internet for the past 3 to 4 months looking for the answer and have called glock several times. I purchased my Glock 29 used in "like new condition". However, from the first magazine of rounds I put through it I had constant failure to eject problems. The extractor would grab the case pull it back and hold on to it trying to feed it back into the chamber. After some research I found that my Glock was made in 1997. At the time (i'm not sure of the exact time frame) Glock was installing trigger housing with an ejector that was stamped 4340. They are very short ejectors. It should have Trigger Housing part #8203 with the ejector stamped 8196-2. The ejector is significantly longer. So the problem I was having was that sometimes the slide would not go back far enough to run the casing into the ejector to knock it out. This problem has puzzled me and many glock armorors I have showed it to for some time. I'm just hoping I can help someone who is having the same problem. It almost had me to the point of trading it in just to get rid of the problem. I'm happy to say that I have fired 200+ rounds with no malfunctions.