Glock Magazine Identification

The only real physical difference on a 'pre-ban" Factory FML Glock magazine and those manufactured AFTER October 1994 isn't the location of the caliber markings, it's the "dimples" or two holes in the plastic on the back of the magazine between the last four witness holes (on all 9mm examples) and the same dimples on the back of the .40S&W mags (depending on model) and all .45ACP models. These holes or dimples were left over from the earlier NFML magazine molds that Glock re-used when they introduced the "new" FML magazines in late 1992. These same dimples are on every single NFML Glock magazine regardless of model or caliber. Glock scrapped these old molds and were forced to make new molds when they were required to add the BATF-mandated "Law Enforcement/Government Only" language to the post-Sept. 1994 restricted magazines. Glock sold many thousands of Post-Ban FML, unmarked Factory magazines overseas for a few years after October 1994 WITHOUT the "LEO-only" language until the BATF forced them to change the design. ALL of these magazines DO NOT have a "high" caliber marking and DO NOT have the dimples. Many of these magazines are sold as "pre-ban". All of the above information is common knowledge among Glock collectors but with all of the confusion, you can see why Glock, Inc. doesn't want to take an "official" position with regards to an absurd State Law. Good luck.

Mags 1-4 are Pre-Ban Mags 5-7 are Post-Ban