Glock 19 Gen 5 vs Glock 43X: Which Handgun is Right for You?

What’s the difference between the Glock 19 Gen 5 and the Glock 43X? The Glock 19 Gen 5 is a compact, do-it-all pistol with a 15-round capacity, while the Glock 43X is slimmer, lighter, and optimized for discreet concealed carry with 10-round magazines.

The Glock 19 Gen 5 suits shooters who want balanced performance—good capacity, easy handling, and compatibility with a wide range of accessories. It works well for both carry and range use. The Glock 43X, by contrast, is for those who prioritize comfort and concealment above all else. Its slimmer profile and lighter weight make it ideal for everyday carry without bulk.

Both models offer Glock’s consistent reliability. The choice comes down to what you value more: capacity and versatility, or comfort and concealability. Either way, you get a dependable sidearm built for real-world use.

Which Glock Model is Better for You?

Choosing between the Glock 19 Gen 5 and Glock 43X depends on your intended use, carry preferences, and shooting environment. Both models excel in their respective categories but cater to different needs.

Feature	Glock 19 Gen 5	Glock 43X
Best Use	Versatile - EDC, home defense, range	Optimal for slim concealed carry
Barrel Length	4.02 inches	3.41 inches
Magazine Capacity	15+1 (up to 33 with extensions)	10+1 (15 with Shield Arms mag)
Weight (Unloaded)	23.63 oz	18.7 oz
Width	1.34 inches	1.10 inches
Concealability	Moderate – ideal with OWB or hybrid IWB	High – ideal for appendix/IWB carry
Trigger & Barrel	Marksman Barrel, smoother trigger reset	Standard trigger, compact barrel
Aftermarket Compatibility	Extensive – lights, barrels, optics	Limited – some options available
Holster Fit	Works best with OWB, chest, hybrid IWB	Great with appendix and slim IWB rigs
Recoil Control	Better recoil absorption	Lighter build, slightly more felt recoil

 

Everyday Carry (EDC) Considerations

The Glock 43X offers superior concealability due to its slim profile and lightweight design. If you prioritize discreet carry under light clothing or need a firearm that’s comfortable for extended wear, this model fits well with IWB (inside-the-waistband) or appendix holsters. Its reduced weight minimizes printing while maintaining reliable performance.

For those who prefer higher capacity without sacrificing compactness, the Glock 19 Gen 5 provides a balance of firepower and manageable size. With a standard magazine holding 15 rounds compared to the 10-round capacity of the Glock 43X, it suits scenarios where additional ammunition may be critical. OWB (outside-the-waistband) holsters or chest rigs accommodate its slightly larger frame effectively.

Home Defense Scenarios

If home defense is your primary concern, the Glock 19 Gen 5 stands out with its increased magazine capacity and compatibility with weapon-mounted lights like Streamlight TLR-7A or SureFire X300U-A. The added grip surface ensures better control during high-stress situations, especially for shooters with larger hands.

While the Glock 43X can serve as a backup option for home defense, its smaller frame might limit accessory options like tactical lights or extended magazines often preferred in low-light conditions.

Range Training & Accuracy

On the range, both pistols deliver excellent reliability; but, the longer sight radius of the Glock 19 Gen 5 enhances accuracy at greater distances. Competitive shooters or enthusiasts practicing drills will appreciate its stability during rapid-fire sequences.

The Glock 43X performs well in close-range drills but may feel less stable during sustained firing sessions due to its lighter build. It’s ideal for new gun owners focusing on concealed carry fundamentals rather than advanced marksmanship techniques.

Customization Potential

Both models support aftermarket upgrades such as night sights and trigger enhancements. But, the Glock 19 Gen 5 benefits from broader compatibility with accessories like threaded barrels for suppressors or compensators—features favored by law enforcement professionals and experienced users seeking versatility across multiple roles.

Alien Gear Holsters made from Boltaron provide durable options for either pistol model based on your chosen carry style. Ensure proper fitment when selecting holsters to maximize comfort and accessibility.

Key Specs Breakdown

Design & Ergonomics

The Glock 19 Gen 5 features a compact frame with an ambidextrous slide stop lever and no finger grooves, accommodating various hand sizes. Its slightly larger grip enhances control during rapid fire, making it ideal for range sessions or duty use. The beveled magazine well allows faster reloads under stress.

The Glock 43X offers a slimline design optimized for concealed carry. Its shorter barrel and single-stack frame reduce printing when carried inside the waistband (IWB) or appendix positions. Even though its smaller size, the extended grip provides enough surface area for most shooters to maintain stability without sacrificing concealability.

Caliber & Barrel Length

Both models are chambered in 9x19mm, offering manageable recoil and wide ammunition availability. The Glock 19 Gen 5 has a barrel length of 4.02 inches, delivering higher muzzle velocity and improved accuracy at medium distances. This makes it suitable for home defense scenarios where precision matters.

The Glock 43X’s shorter 3.41-inch barrel prioritizes portability over long-range performance. It excels in close-quarters engagements common in self-defense situations but may require more practice to achieve consistent accuracy beyond typical defensive ranges.

Capacity & Magazine Options

The Glock 19 Gen 5 standard magazine holds 15 rounds, with optional capacities up to 33 rounds using aftermarket or OEM extended magazines like those from Magpul or ETS Group. This versatility supports tactical applications and prolonged training sessions.

The Glock 43X includes a factory-standard capacity of ten rounds due to its slim profile but is compatible with Shield Arms S15 magazines that increase capacity to fifteen while maintaining flush fitment. This upgrade significantly enhances its appeal as a concealed carry option without compromising ergonomics.

Trigger Performance & Safety Features

The Glock 19 Gen 5 uses the updated Marksman Barrel and smoother trigger pull compared to earlier generations, improving shot placement consistency during high-stress drills. Its Safe Action System integrates three passive safeties—trigger safety, firing pin safety, and drop safety—for reliable operation across diverse environments.

The Glock 43X shares similar trigger mechanics but has a lighter overall weight due to its smaller build, which can affect perceived recoil management during follow-up shots.

Both models retain identical safety systems, ensuring dependable function whether used by civilians or law enforcement professionals seeking streamlined operation under pressure.

Shooting Performance in the Field

Accuracy & Grouping

The Glock 19 Gen 5 delivers consistent accuracy, especially at extended distances. Its 4.02-inch barrel and longer sight radius improve precision during range sessions or defensive scenarios. You’ll notice tighter groupings when shooting beyond 15 yards, making it a reliable choice for home defense or duty use.

Competitive shooters often favor this model for its ability to maintain accuracy under rapid-fire conditions.

The Glock 43X, with its shorter 3.41-inch barrel, excels in close-quarters engagements where speed matters more than pinpoint precision. At ranges within 10 yards, you can achieve effective shot placement suitable for concealed carry and personal defense situations.

While its grouping may widen slightly at greater distances compared to the Glock 19 Gen 5, it remains sufficient for most civilian self-defense needs.

Reliability & Durability

Both models uphold Glock’s reputation for reliability under adverse conditions. The Glock 19 Gen 5 features an nDLC finish on the slide and barrel, enhancing resistance to corrosion and wear during prolonged use or exposure to harsh environments. Law enforcement agencies value this durability when deploying the firearm in diverse operational settings.

The Glock 43X incorporates a similar high-quality finish but prioritizes lightweight construction for everyday carry. It performs reliably across various ammunition types without frequent malfunctions, even after extensive firing sessions.

Whether you're training regularly or relying on your handgun as a concealed carry option, both models demonstrate exceptional dependability over time.

Recoil and Handling for Different Use Cases

Recoil management differs significantly between these two handguns due to their size and weight variations. The Glock 19 Gen 5’s larger frame absorbs recoil effectively, allowing faster follow-up shots during tactical drills or competitive matches. Its ergonomic grip ensures better control during extended shooting periods, appealing to users who prioritize performance over portability.

In contrast, the Glock 43X’s slimline design makes it easier to handle for individuals with smaller hands or those seeking maximum concealment. While its lighter weight results in slightly increased felt recoil compared to the Glock 19 Gen 5, proper grip technique minimizes this effect during practice or real-world encounters.

Concealed Carry & Practical Use

Comfort for Daily Carry

The Glock 43X offers superior comfort for daily concealed carry due to its slimline design and reduced weight. Measuring 1.1 inches in width and weighing approximately 18.7 ounces unloaded, it minimizes printing under clothing, making it ideal for appendix or inside-the-waistband (IWB) holsters.

Its shorter grip reduces bulk while maintaining enough surface area for a secure hold during extended wear.

In contrast, the Glock 19 Gen 5 provides a larger frame with increased capacity but sacrifices some concealability. At 1.34 inches wide and an unloaded weight of roughly 23.63 ounces, it's better suited for outside-the-waistband (OWB) or hybrid holsters like those made by Alien Gear Holsters from Boltaron material.

While slightly heavier, the ergonomic enhancements—such as the absence of finger grooves—ensure comfortable handling over long periods when paired with proper attire and holster selection.

Draw Speed & Accessibility

Draw speed depends on your chosen firearm's size and holster configuration. The Glock 43X excels in rapid accessibility due to its compact dimensions and lighter profile, especially when carried in IWB or appendix positions where minimal adjustments are needed to clear clothing layers quickly.

The Glock 19 Gen 5 requires more deliberate positioning because of its larger frame but compensates with enhanced control during presentation from OWB setups or chest rigs favored by law enforcement professionals. Its ambidextrous slide stop lever supports left-handed users without sacrificing efficiency, ensuring consistent performance across various scenarios such as range drills or defensive encounters.

Both models benefit from high-quality holsters designed to balance retention and ease of draw, with options like adjustable cant angles further optimizing deployment speed based on your preferred carry method and body type.

Will a Glock 19 Gen 5 Fit in a Glock 43X Holster or Viceversa?

No, a Glock 19 Gen 5 will not fit in a Glock 43X holster, and the Glock 43X will not fit in a Glock 19 Gen 5 holster.

The Glock 19 Gen 5 is larger in both width and overall dimensions than the Glock 43X. It has a thicker slide and frame, making it incompatible with holsters molded for the slimmer 43X. Likewise, the 43X is too small to securely fit in a holster designed for the larger 19, which could lead to poor retention or unsafe carry. Always use a holster specifically molded for your firearm model.

Holster Recommendations

Selecting the right holster enhances comfort, accessibility, and safety for both the Glock 19 Gen 5 and Glock 43X. Each model's dimensions and intended use influence compatibility with various carry styles.

OWB, IWB, Appendix, Chest & Other Options

OWB (Outside-the-Waistband): For open carry or range training, OWB holsters provide excellent retention and quick access. The Glock 19 Gen 5 pairs well with durable options like Boltaron-made Alien Gear OWB holsters due to its larger frame. The Glock 43X benefits from compact OWB designs that maintain concealability under light outerwear.

IWB (Inside-the-Waistband): IWB holsters suit concealed carry by minimizing printing. Slimline models like the Glock 43X excel in this configuration when paired with adjustable cant IWB holsters. The Glock 19 Gen 5 requires a slightly bulkier option but remains concealable with proper positioning.

Appendix Carry: Appendix rigs prioritize fast draw speed while maintaining concealment. Both models perform well here; but, the thinner profile of the Glock 43X makes it more comfortable for extended wear in this position.

Chest Rigs: Chest-mounted holsters are ideal for outdoor activities or tactical scenarios where waist carry isn't practical. Modular chest rigs accommodate both models effectively but favor the lighter weight of the Glock 43X for prolonged use.

Final Thoughts — Which One Should You Choose?

Choosing between the Glock 19 Gen 5 and Glock 43X eventually comes down to your specific needs and priorities. If you value higher capacity, versatility, and enhanced performance for home defense or range use, the Glock 19 Gen 5 is a solid choice. On the other hand, if discreet carry and lightweight design are more important to you, the Glock 43X offers excellent concealability without compromising reliability.

Both models deliver exceptional quality and can be tailored to suit various shooting styles with the right accessories. Consider how you'll use your firearm most often—whether it's for everyday carry, home defense, or recreational shooting—and let that guide your decision.

No matter which model you choose, you're investing in a dependable handgun backed by Glock's reputation for durability and performance.

Frequently Asked Questions

What are the main differences between the Glock 19 Gen 5 and Glock 43X?

The Glock 19 Gen 5 is larger, offers a higher magazine capacity (15 rounds), and is better suited for home defense and range use. The Glock 43X, on the other hand, has a slimmer design with a standard capacity of 10 rounds, making it ideal for concealed carry due to its lightweight and compact size.

Which handgun is better for concealed carry: Glock 19 Gen 5 or Glock 43X?

The Glock 43X is better for concealed carry because of its slimline frame, reduced weight, and compact design. It’s easier to conceal under clothing compared to the larger Glock 19 Gen 5.

Is the Glock 19 Gen 5 more accurate than the Glock 43X?

Yes, the Glock 19 Gen 5 generally provides better accuracy at longer distances due to its longer barrel and enhanced grip control. However, the Glock 43X performs well in close-range shooting scenarios.

Can I customize both models easily?

Yes, both models support customization. However, the Glock 19 Gen 5 has broader compatibility with accessories like weapon-mounted lights and extended magazines, making it more versatile for advanced users.

What type of holster works best for each model?

For concealed carry, an IWB (Inside-the-Waistband) holster works best for both models. The slim profile of the Glock 43X pairs well with compact holsters designed for maximum concealment. For open carry or range use, OWB (Outside-the-Waistband) holsters suit the larger Glock 19 Gen 5.

How does recoil management compare between these two models?

The Glock 19 Gen 5 handles recoil better due to its heavier frame and ergonomic grip design, allowing faster follow-up shots. The lighter Glock 43X experiences slightly more recoil but remains manageable for most shooters.

Are both models reliable in different environments?

Yes, both models are highly reliable. The Glock 19 Gen 5 features a corrosion-resistant finish suitable for harsh conditions, while the lightweight construction of the Glock 43X ensures durability during everyday carry.

Which handgun should I choose if I prioritize magazine capacity?

If magazine capacity is your priority, go with the Glock 19 Gen 5 as it comes with a standard capacity of up to 15 rounds compared to the smaller capacity of the Glock 43X (10 rounds).

Is one model better suited for beginners?

Both models are beginner-friendly; however, new shooters may prefer the smaller size and simpler handling of the Glock 43X. More experienced users might appreciate the versatility and performance features of the larger Glock 19 Gen 5.

Can either model be used effectively in competitive shooting?

The Glock 19 Gen 5 is better suited for competitive shooting due to its improved accuracy at longer ranges and compatibility with various upgrades like optics or extended magazines. The compact nature of the Glock 43X makes it less ideal for competition settings but excellent for self-defense drills.