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Glock 43 Extended Magazines & Extensions

The Glock 43 is about as slim as handguns get — 6.25 inches long, barely over an inch wide, small enough to disappear into a suit pocket or purse. If the Glock 26 is the “Baby Glock,” the 43 is the infant sibling. That size comes at a cost, though: a factory magazine that holds just six rounds, well short of what most 9mm shooters expect.

That’s where our extended magazine for Glock 43 comes in. The MTX 43 extension adds three rounds — nine total — and gives your last finger somewhere to actually sit instead of dangling off the grip. One product, better control, better capacity. Upgrade your G43 today.

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Built Better Than Factory

XTech Tactical’s upgraded-over-factory MAG line is built on one idea: the gear you carry every day shouldn’t be the weakest part of your setup. Our Glock 43 extended magazines use steel reinforcement for durability and are backed by a lifetime warranty, so you’re covered no matter how hard you run them.

Average-sized hands weren’t exactly considered when the G43 was designed. The MTX 43 extension fixes that — a longer grip, three extra rounds, and a noticeably steadier hold, all from a single upgrade.

  • 17-7 heat-treated stainless steel spring
  • Enhanced baseplate with side scalloping and proprietary polymer construction
  • Delrin® No-Stick™ follower
  • Freedom Series double-stack, adaptable limited-capacity option
  • Free-State Adaptor™, ready if your state’s laws change or you relocate

Curious about compliance-friendly options? Our

Freedom Series

magazines are built to meet state capacity limits out of the box — and convert to higher capacity later with our freedom kits, if your situation changes.

Why Upgrade

Concealed carry fans love the G43 for its size, but six rounds isn’t much of a safety margin. Our extension takes that to nine, without turning your pocket gun into something that doesn’t fit your pocket. The added length also means you’re not fighting the grip just to hold onto it — your hand finally has somewhere to go.

The tradeoff is minimal: a slightly longer grip, a little added weight, and in return, real control and a gun that actually feels balanced in your hand. It’s a small change that makes a genuine difference in how the G43 handles.

Every XTech magazine — extended or otherwise — comes with a lifetime manufacturer’s warranty. Buy it once. It’ll outlast the gun.

Why XTech

Since 2013, we’ve been designing and manufacturing magazines, extensions, and accessories built to be trusted — by law enforcement, by competitive shooters, and by anyone who wants their gear to work exactly when they need it to. The G43 is small by design, but “small” shouldn’t mean “compromised.” Explore the rest of our lineup to see why so many shooters make us their first call for tactical gear.

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International Warranty

Offered in the country of usage