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AR15.COM
4/20/2012 5:35:31 PM EDT
Are the Gen4 problems confirmed to be only in the 9mm guns?  Or have there been any reported problems with the .40 and 10mm guns?
4/21/2012 12:50:32 AM EDT
[#1]
Majority of the reported problems were with the 9x19mm Gen4 Glocks (17, 19 & 34).
Almost no reported problems with the .40S&W Glocks and no reported problems with the .357SIG, .45GAP & .45ACP Gen4 Glocks.
Currently, there are no 10x25mm Gen4 Glocks.
4/21/2012 4:03:12 AM EDT
[#2]
The ejection problems have been in a small number of recent production Gen3 and Gen4 9mm/.40/.357. I had a Gen3 G27 that had the problem, I installed the new 28926 .40SW ejector, which is being used in the newest Gen4's along with the 9mm 30274 ejector, into the Gen3 trigger housing of that gun along with replacing the extractor and the gun ejects as it should now.

The first report of somewhat consistent ejection problems that I heard was in the M-series of three-letter serial number prefixes. My G27 is NRR.
4/21/2012 4:04:57 PM EDT
[#3]
Also rest assured that most of the new 9mms on teh tables now have the new parts already in them. i bought a gen 4 19 a few weeks ago that has been flawless and has all the appropriate parts.
4/21/2012 6:39:12 PM EDT
[#4]
My Feb. '12 manufactured G23 has been flawless.  It's my understanding that the problem has been solved on new production guns.