How to tell your various Glockazines apart (VIDEO)

The good folks at The Shred Box show you the details of how to tell the rough “born-on” period for your Glock factory magazine.

When you take into account that the G17 went through at least 17 different variants between 1982 and 2010 alone, this is a watershed video for those of you with a ton of old Glock mags from a number of sources.