Glock G43X 9mm
Model: PX4350201
Glock G43X 9mm
Model: PX4350201
Full Specifications
About This Firearm
The Glock G43X is a slim striker-fired 9mm built for concealed carry, and it is made in Austria. The model Glock lists today is the G43X Rail, which has a mounting rail molded into the dust cover. The frame is 1.1 inches across and 5.04 inches tall, so the grip gives a full three-finger hold on a pistol weighing 18.7 oz.
Two magazines come in the box with a speed loader, a cleaning set, a cable lock and a case. The barrel is the Gen5 Marksman barrel, the frame has a built-in beaver tail, and the extended magazine catch reverses for a left-handed shooter. Glock calls the rail a slim mounting rail and it is not the standard Glock rail profile, so a light has to be one cut for Slimline. Nothing on the grip adjusts, because the Slimline frame takes none of the beavertail backstraps a Gen5 frame does.
If you're cross-shopping, the Glock G48 is the same 1.1-inch frame with a longer 4.17-inch barrel and slide, which stretches it to 7.28 inches overall and 20.74 oz for an identical grip height. The Sig Sauer P365 goes the other way at 1.06 inches wide and 17.8 oz, with a grip 4.3 inches tall and 10 rounds in a double-stack magazine. The G43X sits between the two in width and weight.
Best For
Strengths & Limitations
- The magazine follower is orange, so an empty magazine reads at a glance in a pouch or on a bench.
- The frame and slide dimensions match the G48, so Slimline holsters, sights and lights carry across both.
- The magazine catch reverses for left-handed use, though New Style magazines are needed in that position.
- The slide has no optic cut, so a red dot means the MOS version of the same pistol.
- Glock's spec page still shows the single-column magazine as standard while its April 2026 release puts a metal double-stack magazine in the box, so what a dealer has on the shelf depends on when it shipped.
- Lights cut for the standard Glock rail will not fit, so the choice is limited to Slimline models.
Category Rankings
How the Glock G43X 9mm ranks among subcompact 9mm Luger handguns.
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Alternatives to Consider
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| NAME | BEST PRICE |
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Glock G43X MOS 9mm
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FN Reflex MRD 9mm
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$569.00 |
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Smith & Wesson M&P 9 Shield Plus 9mm
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$389.99 |
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IWI Masada Slim 9mm
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Glock G43 9mm
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Frequently Asked Questions
Did the G43X magazine capacity change?
Glock announced on 17 April 2026 that the G43X and G48 would come standard with a metal double-stack magazine instead of the single-column one, reaching dealers in May 2026. The new magazine has a radius in the catch recess so the standard magazine catch can stay in place.
What comes in the box compared with a Gen5 Glock?
A Gen5 or Crossover pistol sold in the USA comes with two spare magazines and a beavertail backstrap set. The Slimline box has the magazines, the speed loader, the cleaning set, the case and the cable lock, with no backstraps.
Is handloaded ammunition allowed?
No. Glock's instructions rule out reloaded, remanufactured and handloaded ammunition in any of its pistols.
