Arredondo +5/+6 Base Pad — The Strongest Glock Mag Extension (Won't Pop Off)

Published on February 10, 2026
Duration: 8:30

This guide details the installation of the Arredondo +5/+6 Base Pad for Glock magazines, enhancing capacity to 23 rounds for 9mm and 21 for .40 S&W. The video emphasizes the durable, two-piece clamping design made from hardened polymer, which offers a more secure fit than traditional pin-retained extensions and is less prone to breakage. It also covers comparisons with other brands and potential fitment considerations with aftermarket magwells.

Quick Summary

The Arredondo +5/+6 Base Pad offers a robust solution for increasing Glock magazine capacity, bringing a 9mm Glock 17 magazine to 23 rounds. Its hardened polymer, two-piece clamping design ensures a secure fit, preventing it from popping off or breaking. This makes it a preferred upgrade over cheaper alternatives like Magpul PMAGs for enhanced reliability and capacity.

Chapters

  1. 00:00Introduction to Arredondo Base Pads
  2. 00:16Design and Durability
  3. 01:25Clamping Mechanism
  4. 02:31Comparison with Magpul PMAGs
  5. 03:43Magwell Compatibility
  6. 04:31Installation Guide

Frequently Asked Questions

What is the capacity increase provided by the Arredondo +5/+6 Base Pad?

The Arredondo +5/+6 Base Pad increases the capacity of a Glock 17 9mm magazine to 23 rounds and a Glock 17 .40 S&W magazine to 21 rounds, adding +6 and +5 rounds respectively.

Why is the Arredondo base pad considered strong and secure?

It features a unique two-piece clamping design made from hardened polymer that slides over the magazine and snaps together, providing a more secure fit than traditional pin-retained extensions and resisting breakage.

How does the Arredondo base pad compare to Magpul PMAGs?

While Magpul PMAGs are cheaper, the OEM Glock magazine with an Arredondo extension is preferred for its metal-reinforced feed lips and higher total capacity, offering a more robust solution.

What tools are needed to install the Arredondo base pad?

Installation requires specialized tools such as a Glock magazine base pad removal tool and a pin punch to safely disassemble and reassemble the magazine with the new components.

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