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The Glock 19 and 23 are already solid platforms, but if you've ever wished your mags held a few more rounds or that the baseplate gave you a little more to grab, this extension from Backup Tactical checks both boxes at once. It adds five rounds to your standard G19 or G23 magazine capacity and extends the baseplate enough to give you a noticeably improved grip on the magazine during reloads or when you're fishing it out of a range bag.
Backup Tactical machines this extension from aluminum and finishes it with an anodized blue coating that's both corrosion-resistant and easy on the eyes. The frag pattern cut into the body isn't just for looks, it gives the extension real texture and makes it easier to handle. This is one of those cases where the design actually serves a function. The blue anodized finish is vibrant without being gaudy, and it holds up well compared to painted finishes.
Installation is straightforward. The package includes an extra-power spring and a securing pin, so you've got everything you need right out of the box. No hunting for extra hardware, no trips to the hardware store. The extra-power spring is worth noting because it helps ensure reliable feeding with the added round count.
This extension is also noted to be compatible with Glock 17 and Glock 22 magazines, making it a versatile option if you run multiple Glock platforms in the same caliber family. It's backed by a lifetime warranty and made in the USA. Whether you're running this on a range gun you want a little more capacity from, or building out a home-defense setup where every round matters, this is a well-made, no-fuss upgrade.
This extension is designed for Glock 19 and Glock 23 magazines, and it's also compatible with Glock 17 and Glock 22 magazines. All of these guns share the same double-stack magazine platform in 9mm and .40 S&W respectively, so the fitment carries over. Always verify fit with your specific magazine generation if you're unsure.
No special tools are needed. The package includes a securing pin and an extra-power spring, which are the only additional components required to complete the install. Most people can get it done in just a few minutes following basic disassembly of the magazine baseplate.
When you increase magazine capacity, the spring has to work harder to push additional rounds up into the chamber reliably. The included extra-power spring is specifically matched to the added length and round count, helping maintain consistent feeding performance with the extension in place. Using the original factory spring with an extension can sometimes lead to feed issues, so the included spring is an important part of the kit.
Anodizing is a hardening process that becomes part of the aluminum itself rather than sitting on top like paint, so it's more durable and corrosion-resistant than a surface coating. It can show wear at contact points over extended use, which is true of any anodized finish, but for a magazine extension it's a very practical and long-lasting option.
It works for both. The added capacity and extended grip surface are useful at the range, especially during drills, and the low-profile aluminum build keeps added bulk to a minimum. Whether it suits a carry setup depends on your holster and personal preferences, but it's a solid, purpose-built piece of kit either way.
Yes, this extension is available in four anodized color options: Black, Blue, Red, and Flat Dark Earth (FDE). If you want to match your pistol's finish or just prefer a different look, the other variants are worth checking out.
| UPC | 686696690574 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | G1923MEXT-BLU |
| Color | Blue |
| Product Type | Magazine Extension |
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