Extended Backup Magazine for Glock 19/23 +5 Capacity - Flat Dark Earth (FDE)

Running a Glock 19 or 23 for duty, defense, or the range? An extended backup magazine for Glock 19/23 with +5 capacity gives you nine extra rounds in a single magazine—a practical way to carry more ammunition without adding bulk to your belt or bag. Backup Tactical's magazine extension bolts onto your existing Glock mag, transforming a standard 15-round 19/23 magazine into a 20-round powerhouse. Built from aluminum with an anodized flat dark earth finish, it's durable enough for hard use and looks right at home on a duty or tactical setup.

Installation is straightforward: the extension comes with a new spring and securing pin, so swapping it onto your magazine takes just a few minutes with basic tools. The anodized finish resists corrosion and wear, and the flat dark earth color matches modern tactical gear and rifle builds. Whether you're topping off a duty rig, setting up a competition gun, or just want a spare mag with more capacity on hand, this extension gives you a practical upgrade to a magazine you likely already own.

Not all shooting situations call for a lightweight carry setup—sometimes you just need more rounds. This extension is a no-fuss way to get there without buying a whole new magazine system.

Key Features

• Adds 5 rounds to Glock 19/23 magazines (converts 15-round mag to 20-round capacity)
• Aluminum construction with anodized flat dark earth finish
• Includes replacement spring and securing pin for installation
• Durable, corrosion-resistant finish for reliable field use

Specifications

Frequently Asked Questions

Will this extension fit my Glock 19 or 23 magazine?

Yes, this Backup Tactical extension is designed to fit standard Glock 19 and 23 magazines. It attaches with the included securing pin.

What's included in the package?

You get the aluminum magazine extension, a replacement spring, and a securing pin for installation.

How do I install it?

The extension slides onto your existing magazine and is secured with the pin. Installation requires no special tools and takes just a few minutes.

Is the flat dark earth finish durable?

The anodized FDE finish is designed to resist corrosion and wear, making it suitable for regular duty and field use.