No, You Cannot Over-insert a Glock Magazine

Nathan S
by Nathan S

While not a raging debate recently (although I have seen a few instances on various forums), I believe it is important to ensure gun fallacies are put to bed, permanently. Let me say it clearly: you cannot over-insert a magazine in a Glock handgun.

For example, many said that using a 17 magazine in a 19, or full-size in a compact gun, would have the magazine over-insert as the base plate was not there to stop over-insertion. While on its face, it makes sense, it shows a significant misunderstanding of the design of the Glock platform.

Every Glock magazine and frame have shelves built in to the left-hand side of the magazine and magazine well-respectively. The sole purpose of these shelves is to ensure that magazines cannot be over-inserted, in much the same way the Gen 3 PMAG has the shelf on the rear of the magazine.

It takes an incredible amount of force to bust through polymers that are loaded against one another vertically. By incredible, I mean more than anything a human could ever exert. As such, use longer Glock magazines anytime.

I carry a 17 magazine as a spare when carrying my 23 (converted to 9mm).

Don’t believe me, take it from some guys who do it for a living:

Nathan S
Nathan S

One of TFB's resident Jarheads, Nathan now works within the firearms industry. A consecutive Marine rifle and pistol expert, he enjoys local 3-gun, NFA, gunsmithing, MSR's, & high-speed gear. Nathan has traveled to over 30 countries working with US DoD & foreign MoDs.The above post is my opinion and does not reflect the views of any company or organization.

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5 of 23 comments
  • Swarf Swarf on Aug 20, 2015

    I would just like to acknowledge the respectable lack of sexual innuendo in this thread.

    Such restraint, given the obvious opportunity, is admirable.


    • See 2 previous
    • BrandonAKsALot BrandonAKsALot on Aug 24, 2015

      @Swarf You sir, win the internet for the month. I graciously bow out.

  • Echo5Charlie Echo5Charlie on Aug 21, 2015

    Yes, you can. Keeping in the faith of the article, not all Glock 17 nor Glock 19 magazines have the over-insertion notch. Granted, those magazines will, in the case of the Glock 17, pre-date 1989, and in the case of the Glock 19 are limited to 1989 production only.