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The Glock 43X is one of the most refined concealed carry pistols Glock has ever produced. Released in 2019, it pairs the slim 3.41-inch barrel and slide of the Glock 43 with the longer grip frame of the Glock 48 -- giving you the best of both platforms in a single package. Chambered in 9x19mm with a 10+1 capacity, an overall length of 6.50 inches, and an unloaded weight of just 16.40 ounces, it is one of the lightest full-grip 9mm pistols available for daily carry. The 1.10-inch width makes it one of the slimmest as well. Finding the right Glock 43X holster is the foundation of a comfortable, concealable carry setup -- and this guide covers every configuration Rounded Gear offers, from IWB strong-side to appendix to OWB, all precision-molded from Kydex and made in the USA.
Best Glock 43X Holsters for Concealed Carry
Every Glock 43X holster from Rounded Gear is molded directly to the pistol's factory dimensions -- including the standard 43X and the MOS (Modular Optic System) variant. The holster indexes on the trigger guard and ejection port for consistent retention and draw stroke, and ships with our proprietary Posi-Click® retention system for audible confirmation every time the gun seats. Here are the primary carry configurations available for the Glock 43X.
IWB Classic Holster for Glock 43X
The everyday carry standard. Our IWB Classic is precision-molded to the Glock 43X's slimline frame and 3.41-inch slide, producing a low-profile inside-the-waistband setup that disappears under a t-shirt. The single-clip design minimizes bulk while anchoring the holster securely to a gun belt. Adjustable cant (0-15 degrees) and ride height let you dial in the draw to match your body and carry position. The full-length sweat guard protects the slide from moisture and keeps the holster comfortable against your skin during all-day wear. Best for: 3-5 o'clock carry, all-day concealed carry, warmer climates where minimal printing matters most.
Tuckable IWB Holster for Glock 43X
The Glock 43X's 1.10-inch width makes it an exceptional candidate for tuckable carry. Our Tuckable IWB holster positions the clip between your belt and pants, allowing your shirt to tuck over the holster body while the pistol remains fully accessible. This creates the deepest concealment available for strong-side carry -- the gun is completely hidden even when you sit down or reach overhead. The gap engineered into the clip creates the clearance needed for fabric to pass through without disrupting the holster's position. Same Posi-Click® retention and adjustable cant as the IWB Classic. Best for: office carry, business attire, any environment where a cover garment is not practical.
Plus Line IWB with Claw for Glock 43X
Engineered for appendix carry. The Plus Line holster adds a concealment claw that hooks behind your belt and uses leverage to press the grip of the Glock 43X flat against your abdomen, eliminating the outward kick of the grip that causes printing at the 12-1 o'clock position. The 43X's longer grip frame (compared to the Glock 43) makes the claw especially useful -- there is simply more grip surface to tuck in. The Plus Line also includes a fiber-reinforced stealth clip, full-length sweat guard, and adjustable retention. If you carry appendix with a 43X, this is the holster to run. Best for: appendix carry, slim to medium builds, those switching from the Glock 43 who find the longer grip of the 43X harder to conceal AIWB.
OWB Paddle Holster for Glock 43X
Fast on, fast off. The OWB Paddle holster clips over your waistband in seconds without threading through belt loops, making it the choice for range days, training, or any situation requiring quick deployment and re-holstering. The open-top design provides a clean, unobstructed draw stroke. Molded to the Glock 43X with the same Posi-Click® retention system as every holster in our lineup. The paddle body distributes the weight of the pistol across a wide surface area for comfort during extended sessions. Best for: range use, dry fire training, home defense staging, open carry where permitted.
OWB Belt Loop Holster for Glock 43X
Maximum stability for extended wear. Two reinforced belt loops anchor the holster directly to your belt, eliminating any lateral movement even during physical activity. The pancake-style body pulls the holster close to your torso, offering better concealment under a jacket or flannel than a standard OWB design. Best for: all-day open carry, duty use, cold-weather carry under a coat, anyone who wants the most secure possible attachment to their belt.
Glock 43X Holster Buying Guide
The 43X's slimline dimensions -- 1.10 inches wide, 5.04 inches tall, 16.40 ounces unloaded -- make it one of the most holster-friendly pistols on the market. But not every holster does justice to those advantages. Here is what to look for when choosing a Glock 43X holster for daily carry.
- Slim-profile molding: The 43X's main advantage over larger pistols is its 1.10-inch width. A holster that adds unnecessary bulk at the sides defeats the purpose. Kydex holsters molded precisely to the 43X's dimensions preserve that slim profile without the added thickness of universal or leather holsters. Every Rounded Gear holster for the 43X is molded to factory tolerances -- the holster adds less than 0.1 inches of width on each side.
- Retention system: Look for a holster with audible retention feedback. Our Posi-Click® system tells you the gun is fully seated with an unmistakable click -- critical when holstering under stress or in the dark. Passive retention (holster grips the pistol at rest) combined with adjustable tension gives you the best of both: secure carry without a thumb break or active retention device slowing your draw.
- Compatibility with the MOS variant: If you run a Glock 43X MOS with an optic, confirm your holster includes an optic cut. All Rounded Gear 43X holsters include the optic cut by default, sized to clear the most common micro red dots including the Holosun 507K, Trijicon RMR Type 2, and Shield RMSc.
- Adjustability: Cant and ride height adjustment let you find the draw angle that works for your body and carry position. What works for a strong-side 4 o'clock carrier is very different from what an appendix carrier needs. A holster that locks you into a single configuration limits your ability to adapt as your carry setup evolves.
IWB vs OWB for Glock 43X -- Which Is Right for You?
The Glock 43X's 6.50-inch overall length and 1.10-inch width make it exceptionally well-suited for IWB carry -- it is genuinely comfortable inside the waistband for most body types without any pants sizing adjustments. OWB is a viable secondary setup for range use and open carry. Here is how the two compare for the 43X specifically.
| Factor | IWB (Inside Waistband) | OWB (Outside Waistband) |
|---|---|---|
| Concealment | Excellent -- the 43X's slim 1.10" width makes it one of the easiest pistols to conceal IWB | Moderate -- slim profile helps, but still requires a cover garment |
| Comfort | Very good -- the 43X's light weight (16.40 oz unloaded) makes IWB carry exceptionally comfortable | Excellent -- no clothing contact with the gun |
| Draw Speed | Good -- clean draw stroke from a well-fitted IWB holster | Faster -- no clothing to clear |
| Wardrobe Impact | Minimal -- the 43X's slim profile rarely requires a pants size adjustment | None -- sits outside your pants entirely |
| Best For | Year-round daily carry, summer carry under a t-shirt, all body types | Range, training, open carry, cold-weather carry under outerwear |
The Glock 43X is arguably the best IWB carry pistol in its class. The combination of slim width, light weight, and 10+1 capacity means most carriers can run it in a standard IWB holster without the wardrobe compromises typically associated with full-size or compact pistols.
Appendix Carry Setup for Glock 43X
The Glock 43X is one of the most popular pistols for appendix carry (AIWB), and for good reason. Its 1.10-inch width is narrow enough to sit flat at the 12-1 o'clock position without uncomfortable pressure, and its 5.04-inch height keeps the muzzle clear of the hip crease when seated. The 16.40-ounce unloaded weight means you barely notice it is there. Here is how to run the 43X in appendix carry effectively.
- Grip printing is the main challenge: The 43X's longer grip frame (the distinguishing feature from the Glock 43) is what makes it comfortable to shoot -- and what makes grip printing the primary concealment challenge for appendix carry. The concealment claw on our Plus Line holster addresses this directly by using belt leverage to press the grip inward. Do not try to run AIWB with the 43X without a claw.
- Ride height for AIWB: Start with the clips at mid-position. Too low and the muzzle digs into your thigh when seated. Too high and the grip extends above the beltline where it can print through your shirt. The 43X's 5.04-inch height gives you a generous adjustment range -- most carriers find their AIWB sweet spot at the middle clip position.
- Gun belt is non-negotiable: A rigid gun belt is especially important for AIWB. The 43X weighs 23.07 ounces loaded -- that weight needs to be distributed evenly around your waist, not sagging forward at the appendix position. A quality 1.5-inch gun belt keeps the holster locked in place through sitting, walking, and bending.
- Clothing selection: The 43X's slim profile works in your favor here. A slightly loose-fitting shirt or a patterned button-down conceals it well. Avoid tight athletic shirts that conform to the grip outline. Dark solid colors or patterns (plaids, flannels) work best for minimizing grip print.
- Grip length advantage for drawing: One underappreciated benefit of the 43X for AIWB: the longer grip frame gives you more surface area for a full firing grip on the draw. Shooters who struggled to get all four fingers on the shorter Glock 43 during a AIWB draw typically find the 43X significantly easier to draw consistently from appendix.
Glock 43X vs Glock 43 -- Which Should You Holster?
If you are deciding between the Glock 43 and the 43X, the holster question is straightforward: both use the same 3.41-inch slide, so any holster molded for the 43X will not fit the 43 without modification (the grip frames are different heights). You need a holster specific to the model you carry. Here is what separates the two from a carry perspective.
- Capacity: 10+1 (43X) vs 6+1 (43). The 43X holds 67% more ammunition in a factory magazine. Shield Arms S15 magazines extend the 43X to 15 rounds -- the same capacity as the Glock 19 in a significantly slimmer package.
- Grip length: The 43X's longer grip accommodates a full four-finger firing grip for most hand sizes. The Glock 43's shorter grip requires a pinky extension magazine for the same.
- Width: Essentially identical at 1.10 inches (43X) vs 1.06 inches (43). The difference is negligible in a holster or against your body.
- Weight: 16.40 oz (43X unloaded) vs 16.23 oz (43 unloaded). Negligible difference for carry purposes.
For most shooters the 43X is the clear choice -- more capacity, better grip, and essentially no concealment penalty over the 43.
Glock 43X MOS and Optic-Ready Holsters
The Glock 43X MOS ships with a milled slide compatible with the Shield Arms SMS2, Holosun 507K, Trijicon RMR Type 2, and other sub-compact footprint optics. Running a micro red dot on your 43X dramatically improves target acquisition speed -- and requires a holster with a matching optic cut.
All Rounded Gear holsters for the Glock 43X MOS include an optic cut sized to clear the widest common footprints in the sub-compact category. The cut does not affect retention or draw consistency -- the holster still indexes on the trigger guard and ejection port as with any standard 43X model.
Note: the 43X MOS requires a holster specifically molded for the MOS variant. A standard 43X holster will not accommodate the raised optic housing. Confirm you are selecting the MOS-compatible holster when ordering if your pistol has an optic installed.
Frequently Asked Questions
What is the best holster for a Glock 43X?
For daily concealed carry, an IWB Kydex holster with a concealment claw is the best setup for a Glock 43X. The 43X's longer grip frame benefits most from a claw attachment (available on the Plus Line) to minimize printing at the appendix position. For strong-side carry, the IWB Classic provides an excellent balance of concealment, comfort, and draw speed. All Rounded Gear holsters for the 43X are precision-molded with Posi-Click® retention.
Will a Glock 43 holster fit a Glock 43X?
No. The Glock 43 and Glock 43X share the same slide and barrel dimensions, but the grip frames are different heights -- the 43X has a taller grip to accommodate its 10-round magazine. A holster molded specifically for the Glock 43X is required. Using a 43 holster with a 43X will result in a poor fit, inconsistent retention, and a safety hazard.
Is the Glock 43X good for concealed carry?
The Glock 43X is widely considered one of the best concealed carry pistols available. At 1.10 inches wide, 6.50 inches overall, and 16.40 ounces unloaded, it combines exceptional slimness with a 10+1 capacity that surpasses most comparable subcompacts. The longer grip frame provides better shooting control than smaller pocket pistols without adding meaningful bulk for carry purposes.
Do Rounded Gear Glock 43X holsters fit the MOS variant?
Yes, Rounded Gear offers holsters molded for the Glock 43X MOS with an optic cut that accommodates the Holosun 507K, Shield RMSc, Trijicon RMR Type 2, and other sub-compact footprint optics. A standard 43X holster will not fit a 43X MOS with an optic mounted.
How long does shipping take for Glock 43X holsters?
Glock 43X holsters from Rounded Gear ship within 1-5 business days. Every holster is made to order in Jacksonville, Florida and goes through multiple quality checks before shipping. Free standard shipping is included on all orders, and every holster is backed by a lifetime guarantee.
Shop Glock 43X Holsters
Browse the full selection of American-made Kydex holsters for the Glock 43X. IWB, tuckable, appendix with claw, and OWB configurations -- all featuring Posi-Click® retention, full trigger guard coverage, and adjustable cant and ride height. Handcrafted in Jacksonville, FL with a lifetime guarantee.
