New Glock Steel 15 Round G43X Magazine Review

Published on May 21, 2026
Duration: 16:54

This review covers the new OEM Glock 15-round magazines for the G43X and G48. The reviewer details extensive testing with over 1,000 rounds across multiple firearms, noting flawless performance with various ammunition types. Key observations include the steel-lined construction, differences in magazine release interaction between older and newer Glock frames, and the larger base plate size impacting concealed carry printing. The video establishes these magazines as the new standard for the Glock slimline platform.

Quick Summary

The new OEM Glock 15-round magazines for the G43X and G48 are steel-lined and have demonstrated excellent reliability in extensive testing, handling over 1,000 rounds without malfunctions. While they offer increased capacity, users should be aware of potential differences in drop-free performance with older firearm frames and the larger base plate size impacting concealed carry.

Chapters

  1. 00:00Introduction & Overview
  2. 00:19What are the new Glock 15-Round Magazines?
  3. 00:58Glock 43X/48 Family & Initial Capacity
  4. 01:03Market Competition & Glock's Response
  5. 01:37Sponsor: Attorneys on Retainer
  6. 02:40Magazine Construction & Differences
  7. 03:02Testing the 15-Round Magazine
  8. 03:47Ammunition Tested & Performance
  9. 03:57Firearms Used for Testing
  10. 04:03Magazine Release Interaction & Frame Differences
  11. 04:46Drop Free Performance on Older vs. Newer Frames
  12. 05:39Aftermarket Mag Catch & Frame Interaction
  13. 05:50Over-Travel Stop & Base Plate Size
  14. 06:11Concealed Carry Printing & Aftermarket Base Pads
  15. 06:42Disassembly, Cleaning & Maintenance
  16. 06:56Finish Wear Observations
  17. 07:16Slide Lock Back Functionality
  18. 07:28Compatibility with Third-Party Firearms (DY9Z)
  19. 07:55Standardization of Glock Slimline Mags
  20. 08:17Price & Availability
  21. 08:31Pros & Cons Summary
  22. 08:57Channel Engagement & Subscriptions

Frequently Asked Questions

What is the capacity of the new Glock magazines for the G43X and G48?

The new OEM Glock magazines for the G43X and G48 have a standard capacity of 15 rounds. These are designed to replace the original 10-round magazines for these pistol models.

Are the new Glock 15-round magazines reliable?

Yes, extensive testing with over 1,000 rounds across multiple firearms and various ammunition types showed flawless performance with no malfunctions, indicating high reliability for these new magazines.

Do the new Glock 15-round magazines work with older Glock 43X/48 frames?

Performance can vary. Newer Glock frames (e.g., 2025 production) generally exhibit proper drop-free function. However, older frames may experience some sticking or failure to drop free due to differences in magazine release interaction.

How do the new Glock 15-round magazines compare to aftermarket options?

These OEM 15-round magazines are steel-lined and offer reliable performance. They set a new standard for Glock slimline magazines, though aftermarket options like Shield Arms previously offered similar capacities with potentially different base plate sizes.

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