
Here in Florida, choosing an everyday carry pistol is a very personal decision. It needs to be reliable above all else, comfortable in our relentless humidity, and capable enough to give you confidence. For years, the Glock 43X has been a top contender in that conversation, offering a fantastic slimline frame that disappears under a t-shirt but was, for some, held back by its 10-round magazine capacity. That changed when aftermarket companies like Shield Arms released metal 15-round magazines. Now, Glock has entered the game directly with their own factory offering. We got our hands on the new Glock 43X 15-round magazine (model GL79269) at Sunshine Gun Shop, ran it through its paces, and here’s our honest take for Florida carriers.
What This New Magazine Really Means
First, let’s be clear: the Glock 43X pistol itself hasn’t changed. This review is focused on the transformative new factory accessory—the all-metal 15-round magazine. For years, the 43X’s defining trade-off was its slim, single-stack-like grip width for shootability and concealment, but with a standard capacity of 10+1. The new magazine, which has a Manufacturer’s Suggested Retail Price of $32.73, aims to erase that compromise by offering 50% more capacity in the same physical footprint.
This is a big deal for Florida’s concealed carriers. We don’t have magazine capacity restrictions, so maximizing your rounds without sacrificing concealment is a logical goal. More importantly, this comes from Glock directly. For many shooters, especially those who prioritize absolute reliability for self-defense, factory-original equipment carries a significant peace-of-mind premium.
Specs at a Glance: Glock 43X 15-Round Magazine (GL79269)
- Model: GL79269
- Compatibility: Glock 43X, Glock 48 (will not fit standard G43)
- Capacity: 15 Rounds
- Construction: Steel body with polymer follower
- Finish: Black Melonite
- MSRP: $32.73
- Weight: Approximately 3.5 oz (empty)
Hands-On Testing & Reliability
We took several of these new magazines to the range with a well-used Glock 43X from our rental fleet at Sunshine Gun Shop. Our testing protocol was simple: feed it a variety of ammunition and see if it runs. We put over 500 rounds through three separate magazines, mixing 115-grain and 124-grain FMJ range ammo, along with several magazines of common 124-grain and 147-grain hollow points used for defensive carry here in Tampa.
The results were exactly what you’d hope for from a factory Glock product: flawless. Every round fed, chambered, fired, and ejected without a single hiccup. The magazines dropped free cleanly on every reload. The steel construction gives them a more substantial, secure feel when seating them on a closed slide, which is a small but noticeable improvement over the polymer OEM mags.
Comparison: Glock OEM vs. Shield Arms S15
This is the inevitable and most important comparison. Shield Arms pioneered the 15-round metal magazine for the 43X/48 platform, and they’ve earned a strong reputation. Having also tested the Gen 2 and Gen 3 S15 magazines, here’s our direct breakdown:
- Reliability (Perceived & Tested): The Glock magazine has the psychological advantage of being a factory part. In our tests, both have been reliable, but we’ve heard more anecdotal reports of break-in or occasional feed issues with S15s over the years. Our Glock OEM samples ran perfectly from round one.
- Magazine Release: This is a key difference. Shield Arms magazines require their metal magazine catch (included) to prevent wear. The Glock OEM magazine is designed to work with the stock polymer magazine release. For purists who don’t want to modify their firearm, the Glock option is simpler.
- Fit and Finish: Both are well-made. The Glock magazine has a slightly more rounded lip at the top, which we found provided a marginally smoother reload under pressure.
- Price: They are very similarly priced, making the decision more about brand trust and the magazine catch modification.
For the shooter who wants maximum capacity with zero modifications to their pistol, the Glock 43X 15-round magazine is now the obvious choice.
Holster Fitment and Daily Carry
A major concern with any new magazine is whether it will work with your existing gear. The good news is that because the external dimensions are virtually identical to the original 10-round magazine, holster compatibility is not an issue. The extra length is all in the magazine body below the grip. We tested the 43X with the new mags in several popular holsters from Vedder, Tier 1 Concealed, and a local Tampa holster maker, and the fit remained perfect.
For daily carry in Florida, this upgrade makes the 43X an even more compelling package. You now have a pistol that’s as slim and easy to conceal as ever, but with a capacity that matches or exceeds many larger double-stack compacts. When you’re wearing light clothing in the Florida heat, that slim profile is a major advantage, and the extra five rounds are a significant boost in capability without any downside in comfort or concealment.
What’s in the Box
- One (1) Glock 43X/48 15-round steel magazine (GL79269)
- One (1) polymer magazine floorplate
- Glock documentation and warranty information
Note that the magazine comes with a standard flat floorplate. Some may prefer a slight pinky extension, but the 43X’s grip is already long enough for a full firing hand purchase for most shooters.
Pros and Cons
Based on our testing, here’s the straightforward breakdown.
Pros
- Factory Glock Reliability: The biggest pro. It’s designed and built by Glock for this specific firearm.
- No Modifications Required: Works perfectly with the stock polymer magazine release.
- Seamless Holster Fit: No need to buy new holsters; fits all holsters designed for the 43X/48.
- 50% More Capacity: Transforms the 43X from a 10+1 to a 15+1 pistol.
- Robust Steel Construction: Feels durable and seats with authority.
Cons
- Weight Increase: A loaded steel magazine is heavier than a loaded polymer one. This adds weight to your carry setup, noticeable on the belt.
- Cost: At over $30 per magazine, building a collection of them is more expensive than the standard mags.
- Potential for Wear: Over a very long period, a steel magazine rubbing against a polymer mag catch could cause wear. This is typical for any metal-on-polymer setup, but it’s worth monitoring.
Frequently Asked Questions
Does the Glock 43X 15-round magazine fit the regular Glock 43?
No, it does not. The Glock 43X and 48 have a longer grip frame and different magazine well. This magazine is specifically for the 43X and 48 models only.
Do I need to change my magazine release for this Glock magazine?
No, you do not. This is a major advantage. The Glock OEM 15-round magazine is designed to function with the stock polymer magazine release that came with your pistol.
Will these magazines work in my Glock 43X MOS?
Yes, absolutely. The MOS (Modular Optic System) variant has the same frame and magazine well as the standard 43X. These magazines are fully compatible.
Are these magazines legal in Florida?
Yes. Florida has no restrictions on magazine capacity for law-abiding citizens. You can legally purchase and carry these 15-round magazines.
How do I purchase one if I’m in Florida?
As with any firearm component, you can buy them online or in-store, but they must ship to a Florida Federal Firearms License (FFL) holder for transfer. At Sunshine Gun Shop, we regularly stock these magazines and can handle the simple transfer if you order online, or you can buy them directly off our shelf.
Is it worth upgrading from my Shield Arms S15 magazines?
If your S15 magazines have been 100% reliable and you don’t mind the metal magazine catch, there may be no urgent need to switch. However, if you prefer factory components or have had any reliability doubts, the Glock OEM magazine is an excellent and direct upgrade that simplifies your setup.
Final Verdict
The release of the factory Glock 43X 15-round magazine is a significant moment for the platform. It effectively removes the last notable compromise of an already excellent carry pistol. You now get the legendary reliability of a factory Glock component, the perfect concealability of the slimline frame, and a modern capacity of 15+1 rounds.
For Florida residents looking for an everyday carry option, this makes the Glock 43X one of the most balanced choices on the market. It handles the humid climate well, its size is ideal for lightweight clothing, and now its capacity is genuinely formidable. While the added weight of the steel magazine is a real consideration, for most, the trade-off for five extra rounds of factory-proven reliability is more than worth it.
Where to Buy
If you’re in the Tampa area or anywhere in Florida and are interested in upgrading your Glock 43X or 48, we have these new magazines in stock and ready to go at Sunshine Gun Shop. We can also help you with the FFL transfer process if you find a good deal online. As always, our staff is happy to answer any questions you have about this magazine or finding the right holster and setup for your Florida EDC needs. Stop by and see us—we’ll let you feel the difference for yourself.
Ready to buy? The Glock 43X (New 2026) 9mm w/ 15rd Metal Magazines is in stock at Sunshine Gun Shop — $599.00. View Product →


