The serial numbers of the Glocks which may have the latest major problem.
"Officer "X", Firearms Coordinator, was informed by a Glock representative that there are
problems with the frames. Anyone having a Glock within the below listed range of serial numbers
will need their frame replaced due to inferior metal on the guide rails.
Glock Serial Number Range — EAA 000 US to EZZ 999 US"
Check your serial numbers.