Your magazine does look weird. Could it be one of those Chinese fakes? Did it come from Glock or with a new in box Glock pistol? The plastic looks like it has a deeper gap between the metal and plastic, etc. Over the years Glock added the ambi mag release cut but I don't know why dimensionally that the layout would need to change to make that 'ok' compared to older one's like mine or the LE/Military like Threeband's.And the specific mag from my belt ( w/ BF Jr' dirty fingernails)
View attachment 487377
They're different !
Y'all's the witness holes are side by side in each row . Mine , They're staggered , the farther down the mag , the more that the witness hole on the right is increasingly farther down than the left , to the point that one final row , it's noticeable at a glance which one is above which one .
At least I'm 10% not crazy .
Now , I'm going to have to go and inspect and segregate all my magazines.