Glock 43 vs 43X Holster: Size, Fit & Carry Comparison

Updated October 14, 2026 · Front Line Holsters Team

Front Line IWB Holster

Israeli-made · Battle-tested · Ships via Amazon Prime

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Two Slim Glocks, One Big Question

Will a Glock 43X fit in a Glock 43 holster? No: each model needs its own holster. The two guns share a 6.06-inch slide, but the 43X is 0.79 inches taller, 0.04 inches wider and 0.24 inches longer overall. A holster molded for the G43 is not made for the 43X, and the reverse is also true. Buy the holster made for your exact model.

The Glock 43 and Glock 43X look similar on paper. Both are slim, single-stack-width pistols designed for concealed carry. But the differences between them affect which holster you need, how the gun conceals, and how it carries throughout the day.

This guide breaks down the exact dimensional differences, holster compatibility, and carry characteristics so you can make the right choice.

Side-by-Side Specs

Spec	Glock 43	Glock 43X
Caliber	9mm	9mm
Capacity	6+1	10+1
Overall Length	6.26"	6.50"
Slide Length	6.06"	6.06"
Height (with mag)	4.25"	5.04"
Width	1.06"	1.10"
Weight (empty)	17.95 oz	18.70 oz
Barrel Length	3.41"	3.41"

The Key Difference: Grip Length

The slides are the same length (6.06"). The barrels are identical. The real difference is the grip.

The G43X grip is 0.79 inches taller than the G43. That extra height accommodates the 10-round magazine and gives you a full grip without a pinky extension. For shooters with medium to large hands, the 43X feels like a proper handgun. The G43 leaves your pinky dangling unless you add an extension.

That grip difference is also the biggest factor in concealment. The grip is what prints — not the slide, not the barrel.

Holster Fit: Same or Different?

The Glock 43 and 43X each need their own holster. The two guns share the same slide length and barrel length, but the 43X is 0.24 inches longer overall (6.50" vs 6.26"), 0.79 inches taller, and 0.04 inches wider. A holster molded for one is not made for the other.

Glock 43 → a holster molded for the G43
Glock 43X → a holster molded for the 43X

Front Line makes a separate holster for each model. Some manufacturers advertise a single holster for both guns, but we recommend a holster made for your exact model, with full trigger guard coverage and secure retention. Don't assume "slim Glock = same holster."

Concealment Comparison

Glock 43: The Deep Concealment King

The G43 is one of the smallest 9mm Glocks ever made. At 4.25 inches tall and barely over an inch wide, it disappears under a t-shirt in any carry position. Appendix, strong side, even pocket carry with the right setup. If your priority is making a gun vanish, the G43 wins.

Glock 43X: The Balanced Option

The G43X trades a small amount of concealment for significantly more capacity and shootability. The taller grip is slightly harder to hide, especially in appendix carry with a tucked shirt. But for most body types with a quality IWB holster, the difference is minimal. You gain 4 extra rounds and a much better grip.

Which Should You Carry?

Choose the Glock 43 if:

Deep concealment is your top priority
You wear fitted clothing or carry in hot weather with minimal layers
You have smaller hands and the short grip feels natural
You want the lightest, most compact option possible

Choose the Glock 43X if:

You want 10+1 capacity in a slim frame
You want a full grip without extensions
You prioritize shootability alongside concealment
You typically wear an untucked shirt or have an extra layer

Carry Position Recommendations

Appendix Carry

Both work well in appendix. The G43 sits flatter due to the shorter grip. The G43X requires slightly more attention to cant and ride height to prevent the grip from printing against your stomach when seated.

Strong Side (3-4 O'Clock)

Both conceal easily on the hip. The G43X's taller grip actually helps here — it fills your hand better for a faster, more secure draw.

Magazine Compatibility Note

G43X magazines do NOT fit the G43 (and vice versa). The G43 uses a proprietary single-stack magazine. The G43X uses the same magazine as the G48 (10-round, slightly wider). If magazine interchangeability matters to you, consider pairing the G43X with a G48 as your home/range gun.

Frequently Asked Questions

Will a Glock 43X fit in a Glock 43 holster?

No. The Glock 43 and Glock 43X each need their own holster. They share the same 6.06 inch slide, but the 43X is 0.79 inches taller, 0.04 inches wider and 0.24 inches longer overall, so a holster molded for the G43 is not made for the 43X. Buy the holster made for your exact model.

Will a Glock 43 fit in a Glock 43X holster?

No. Buy the holster made for your exact model: the G43 needs one molded for the G43, and the 43X needs one molded for the 43X, even where a third-party listing claims to fit both.

Is the Glock 43X too big for concealed carry?

No. The 43X is still a slim, subcompact-sized pistol. It is wider than the G43 by only 0.04 inches and taller by 0.79 inches. With a proper IWB holster and cant adjustment, it conceals almost as well as the G43.

Which is better for a first concealed carry gun?

The G43X for most people. The extra capacity (10+1 vs 6+1), longer grip, and nearly identical width make it easier to shoot well. The G43 is better as a deep concealment backup.

The Bottom Line

The Glock 43 and 43X are both excellent concealed carry guns, but they serve slightly different roles. The G43 is for maximum concealment. The G43X is for the best balance of concealment and capability. Both deserve a precision-molded holster made for their exact model. Front Line builds a dedicated IWB holster for each with adjustable retention, cant, ride height, and a built-in sweat shield.

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