What is the main difference between the Glock 19 and the Glock 19X?

The main difference is the grip length, as the Glock 19X uses the longer full-size Glock 17 frame with a 19-length slide and barrel.

Which is better for concealed carry, the Glock 19 or the Glock 19X?

The Glock 19 is better for concealed carry because its shorter grip reduces printing and makes the firearm easier to hide under clothing.

Is the Glock 19X more expensive than the Glock 19?

Yes, the Glock 19X typically costs more than the Glock 19 because it includes factory night sights, a lanyard loop, and a coyote-tan finish.

Are Glock 19 magazines compatible with the Glock 19X?

Yes, all standard Glock 19 magazines are fully compatible with the Glock 19X since they share the same magazine well design.

What is a common beginner mistake when choosing between the Glock 19 and the Glock 19X?

A common beginner mistake is assuming the 19X is smaller than the 19, when it actually has a longer grip that is harder to conceal.

Can I swap the slide from a Glock 19 onto a Glock 19X frame?

Yes, you can swap the slide from a Glock 19 onto a Glock 19X frame because both use the same compact slide dimensions and locking block.

Is the Glock 19X considered a full-size or compact pistol?

The Glock 19X is considered a crossover pistol because it combines a compact slide with a full-size grip for a hybrid configuration.

Which pistol has better accuracy, the Glock 19 or the Glock 19X?

Both pistols have identical accuracy because they share the same barrel length, rifling, and sight radius, so accuracy differences are negligible.

Is the Glock 19X safe for duty use compared to the Glock 19?

Yes, the Glock 19X is safe for duty use since it was originally designed for the US Army Modular Handgun System trials and passed rigorous testing.

Can I switch from carrying a Glock 19 to a Glock 19X without changing holsters?

No, you cannot switch without changing holsters because the 19X's longer grip requires a holster designed specifically for its full-size frame profile.

Difference Between

Difference Between Glock 19 and 19x

Written byNex Virox Team

Editorial Team

Reviewed byVarshal Nirbhavane

Senior SEO & Organic Growth Professional · 5+ years

Published: September 6, 202618 min read

Quick answer

The main difference between Glock 19 and 19x is that the Glock 19 has a compact slide and frame, while the 19x combines a compact slide with a full-size frame. Glock 19 is a compact, 15-round pistol, while 19x is a crossover, 19-round pistol.

Key takeaways

Core distinction: Glock 19 has a compact slide and frame, while 19x pairs that slide with a full-size grip.
Frame and capacity: The 19x uses a longer, full-size frame holding 17-round magazines, whereas Glock 19 takes 15-round magazines.
Trigger and controls: Both share the same trigger system, but 19x adds an ambidextrous slide stop lever for left-handed shooters.
Best-fit use case: Choose Glock 19 for concealed carry, but select 19x for duty use or larger hands needing a full grip.
Common decision mistake: Buyers often overlook that 19x lacks a lanyard loop, unlike the standard Glock 19, which includes one.

Table of Contents18 sections

Difference Between Glock 19 and 19x: Comparison Table

Aspect	Glock 19	19x
Definition	Compact 9mm pistol introduced in 1988 for concealed carry and law enforcement.	Full-size 9mm pistol released in 2018 combining a compact slide with a full-size frame.
Primary Purpose	Designed for concealed carry, duty use, and home defense with balanced dimensions.	Built as a crossover pistol for military trials, duty holsters, and open carry.
Core Mechanism	Uses a Browning-style short recoil system with a tilting barrel and locked breech.	Employs the same short recoil system with a cam-actuated locking block.
Frame Size	Compact frame with a 4.17-inch height and a 5.04-inch overall length.	Full-size frame with a 5.47-inch height and a 7.44-inch overall length.
Slide Length	Compact slide measuring 6.85 inches from muzzle to rear.	Compact slide identical to the Glock 19 at 6.85 inches long.
Barrel Length	4.02-inch barrel with a hexagonal rifling profile and 1:9.84 twist rate.	4.02-inch barrel with the same rifling and twist rate as the Glock 19.
Magazine Capacity	Standard 15-round double-stack magazine with a flush-fit baseplate.	Standard 17-round magazine with an extended floor plate for full-size grip.
Weight Unloaded	21.16 ounces unloaded with the standard 15-round magazine inserted.	24.83 ounces unloaded with the standard 17-round magazine inserted.
Loaded Weight	Approximately 30 ounces with a full 15-round magazine of 9mm ammunition.	Approximately 35 ounces with a full 17-round magazine of 9mm ammunition.
Grip Circumference	Compact grip with a 1.26-inch width and a shorter front-to-back dimension.	Full-size grip with a 1.26-inch width but a longer front-to-back reach.
Grip Texture	Standard Gen 5 polymer texture with a coarse, aggressive stippling pattern.	Exclusive nPVD Coyote finish with a slightly smoother, less aggressive texture.
Trigger Pull	Safe Action trigger with a 5.5-pound pull weight and a short reset.	Safe Action trigger with a 5.5-pound pull and a crisp, consistent break.
Trigger Travel	Approximately 0.5 inches of take-up before the trigger breaks.	Approximately 0.5 inches of take-up with a tactile and audible reset.
Sight Configuration	Standard polymer sights with a white dot front and white outline rear.	Night sights with tritium inserts for low-light visibility and faster acquisition.
Sight Height	Standard height sights that co-witness with most aftermarket optics.	Taller suppressor-height sights that co-witness with a red dot optic.
Finish Type	Gen 5 nDLC finish in black on the slide and barrel.	nPVD Coyote tan finish on the slide, barrel, and frame components.
Ambidextrous Controls	Slide stop and magazine release are fully ambidextrous from the factory.	Slide stop is ambidextrous, but the magazine release is not reversible.
Magazine Release	Reversible magazine catch that can be swapped for left-handed operation.	Non-reversible magazine catch fixed for right-handed shooters only.
Accessory Rail	Picatinny rail with one slot for lights and lasers.	Picatinny rail with a single slot, identical to the Glock 19 rail.
Concealability	Compact grip and slide make it ideal for inside-the-waistband carry.	Full-size grip prints more and suits outside-the-waistband holsters.
Recoil Management	Compact frame transfers more felt recoil to the shooter's hands.	Full-size frame and extra weight absorb more recoil for faster follow-up shots.
Accuracy Potential	Combat accuracy of 4-inch groups at 25 yards with factory ammunition.	Combat accuracy of 4-inch groups at 25 yards, identical to the Glock 19.
Reliability	Proven track record exceeding 300,000 rounds in endurance tests by users.	Military-tested with a 20,000-round reliability standard before release.
Durability	nDLC finish resists corrosion and wear under daily carry conditions.	nPVD finish offers similar corrosion resistance with a distinctive tan color.
Maintenance	Field strips into 5 parts for quick cleaning without special tools.	Field strips into 5 parts with the same takedown procedure as the Glock 19.
Safety Features	Three automatic safeties: trigger, firing pin, and drop safety.	Same three automatic safeties with no manual external safety lever.
Compatibility	Accepts Glock 19, 17, and 19x magazines with standard 9mm rounds.	Accepts Glock 17 and 19x magazines, but not flush-fit Glock 19 magazines.
Aftermarket Support	Largest aftermarket ecosystem with hundreds of holsters and optic cuts.	Growing support with dedicated holsters and optic plates from major brands.
Typical Users	Concealed carriers, plainclothes officers, and civilian self-defense shooters.	Duty officers, military personnel, and shooters preferring full-size grips.
Best-Fit Scenario	Choose the Glock 19 for discreet everyday carry and versatile compact use.	Choose the 19x for open carry, duty holsters, and maximum grip comfort.

What Is Glock 19?

Glock 19 is a compact, striker-fired, 9mm semi-automatic pistol designed for concealed carry and duty use. It delivers a balance of capacity, size and reliability that has made it one of the most widely adopted handguns globally since its 1988 introduction.

Definition of Glock 19

The Glock 19 is a short-recoil-operated, locked-breech pistol with a polymer frame, a steel slide and a 4.02-inch barrel. It feeds from a double-stack magazine holding 15 rounds of 9x19mm ammunition and uses a trigger-safe action with no external manual safety.

Key Characteristics of Glock 19

Characteristic	What It Means in Practice
Compact frame	Fits hands of most shooters while remaining short enough for comfortable daily concealed carry.
4.02-inch barrel	Provides a useful sight radius and velocity without making the pistol awkward to holster.
15-round magazine	Offers substantial firepower in a package smaller than full-size service pistols.
Trigger-safe action	Uses three internal safeties; no external lever to snag or forget during a draw.
Polymer frame	Keeps unloaded weight near 21 ounces, reducing fatigue during all-day carry.
9mm chambering	Balances manageable recoil with proven terminal performance for self-defense loads.
Fixed front sight	Simplifies the sight picture; the rear sight is drift-adjustable for windage.
Accessory rail	Lets users mount a weapon light or laser on the dust cover forward of the trigger guard.
Interchangeable backstraps	Allows shooters to adjust grip circumference to match hand size across three insert options.
Field-strip design	Disassembles into four main parts without tools for quick cleaning and maintenance.

Common Examples of Glock 19

Glock 19 Gen5 – the current standard model, with a flared magazine well and no finger grooves.
Glock 19 Gen4 – a widely issued generation featuring a reversible magazine catch and dual recoil spring.
Glock 19 Gen3 – the long-running third generation still popular in restricted states like California.
Glock 19 MOS – a factory-cut slide version that accepts red-dot optics without aftermarket machining.
Glock 19X – a crossover model pairing the compact 19 slide with a full-size 17 frame and lanyard loop.
Glock 19 with night sights – a common dealer configuration using tritium dots for low-light aiming.
Glock 19 RTF2 – a rough-textured frame variant with a checkered grip pattern produced in limited runs.
Glock 19C – a compensated version with ported slide and barrel to reduce muzzle rise during firing.
Glock 19 Gen5 FS – the front serration model that adds grip texturing on the forward slide area.
Glock 19 with threaded barrel – a popular setup for attaching a suppressor or compensator to the muzzle.

Advantages and Limitations of Glock 19

Advantages	Limitations
Proven reliability across extreme temperatures, dirt and neglect with minimal lubrication.	Factory trigger feels spongy and gritty compared to aftermarket or hammer-fired competitors.
Huge aftermarket ecosystem for sights, triggers, barrels, slides and holsters.	Grip angle and thickness feel blocky to shooters with smaller hands.
Simple takedown requires no tools and takes seconds to master.	Stock sights are polymer and easily damaged during hard use or holster draws.
Magazines are inexpensive, durable and available from many third-party manufacturers.	No factory manual safety, which some users find unsuitable for certain carry conditions.
Compact dimensions fit most holsters and conceal under light clothing.	Recoil impulse feels snappier than heavier steel-frame pistols of similar size.
15-round capacity beats most subcompact pistols of comparable width.	Slide serrations are shallow and slick when hands are wet or gloved.
Parts are widely stocked by gunsmiths, and repair knowledge is common.	Factory finish wears at contact points, showing holster rub on the slide edges.
Lightweight polymer frame reduces carry fatigue over long shifts.	Grip texture is aggressive enough to irritate bare skin during concealed carry.
Consistent trigger pull from first shot to last with no mode switching.	Barrel length limits velocity compared to full-size 9mm pistols with longer tubes.
Resale value stays high because demand for Glock 19 remains steady worldwide.	Brick-like grip profile makes it less comfortable for shooters with short fingers.

What Is 19x?

19x is Glock's crossover pistol combining the full-size Glock 17 frame with the compact Glock 19 slide and barrel. It exists to give shooters a duty-sized grip with a shorter, more concealable slide.

Definition of 19x

19x is a semi-automatic, striker-fired polymer pistol chambered in 9x19mm Parabellum. It pairs a full-size Gen 5 frame with a compact Gen 5 slide, features a lanyard loop, and ships with a coyote-tan finish and three magazines.

Key Characteristics of 19x

Characteristic	What It Means in Practice
Full-Size Frame	Grip length matches the Glock 17, giving larger hands a full purchase and better recoil control.
Compact Slide	Barrel and slide are shorter than a 17, making it easier to draw and carry.
Gen 5 Design	No finger grooves, a flared magazine well, and a marksman barrel for improved accuracy.
Coyote Finish	Tan-colored frame and slide resist corrosion and stand out from standard black Glocks.
Lanyard Loop	A metal loop on the backstrap lets you secure the pistol with a cord, useful for duty use.
Three Magazines	Ships with two 17-round and one 17-round extended magazine, increasing total capacity.
9x19mm Caliber	Chambers the common 9mm Luger round, offering low cost and wide ammunition availability.
Front Serrations	Textured cuts on the slide front allow for positive press-check and slide manipulation.
Ambidextrous Slide Stop	Slide release levers on both sides aid left- and right-handed shooters.
Glock Factory Sights	Comes with polymer sights that are durable but often upgraded by owners for night use.

Common Examples of 19x

Glock 19x Gen 5 – the standard production model, used widely by law enforcement and civilian shooters.
U.S. Army MHS Trial Pistol – the 19x was Glock's entry for the Modular Handgun System competition.
Glock 19x with MOS Cut – a factory option that adds a mounting plate for red-dot optics.
Glock 19x with Threaded Barrel – a variant that accepts a suppressor or compensator.
Glock 19x in Coyote Tan – the signature finish that distinguishes it from standard black models.
Glock 19x with Night Sights – a common aftermarket upgrade for low-light shooting.
Glock 19x for Duty Use – a popular choice for police officers who want a full grip with a shorter slide.
Glock 19x for Home Defense – its large frame and 9mm round make it a reliable bedside option.
Glock 19x for Competition – shooters use it in practical pistol matches for its balance and capacity.
Glock 19x with Extended Mag Release – an aftermarket part that speeds up reloads for smaller hands.

Advantages and Limitations of 19x

Advantages	Limitations
Full-size grip provides better control and comfort for most hand sizes.	Grip length is too long for shooters with small hands, causing poor trigger reach.
Shorter slide reduces weight and makes the pistol easier to carry appendix.	Slide is still thicker than slim single-stack pistols, limiting deep concealment.
Three magazines included offer high round count straight from the box.	Tan finish is more visible than black, reducing stealth in plainclothes carry.
Gen 5 features like flared magwell speed up reloads under stress.	Flared magwell can pinch the pinky finger during a high grip.
Front serrations allow a firm grip for press checks and malfunction clears.	Front serrations are shallow and can be slippery when hands are wet.
Lanyard loop adds security for military and duty users.	Lanyard loop can dig into the palm for civilian shooters without a cord.
9mm round is affordable, common, and effective for self-defense.	Recoil is snappier than heavier calibers like .45 ACP for some shooters.
Ambidextrous slide stop works well for left-handed shooters.	Slide stop is small and can be hard to reach for shooters with short thumbs.
Marksman barrel delivers consistent accuracy out of the box.	Barrel is not threaded, so suppressors require a separate aftermarket barrel.
Wide aftermarket support includes holsters, sights, and triggers.	Factory trigger has a spongy feel and a long reset compared to custom triggers.

Similarities Between Glock 19 and 19x

Shared Aspect	How Glock 19 and 19x Are Alike
Core Caliber	Both the Glock 19 and 19x fire the 9x19mm Parabellum cartridge, using the same standard ammunition.
Magazine Type	The Glock 19 and 19x both accept the same double-stack 9mm magazines, ensuring interchangeability.
Primary Function	The Glock 19 and 19x serve as reliable defensive sidearms for personal protection and duty use.
Action System	Both the Glock 19 and 19x use the identical Safe Action trigger system with three automatic safeties.
Frame Material	The Glock 19 and 19x both feature a polymer frame designed for durability and reduced weight.
Slide Finish	Both the Glock 19 and 19x use the same nDLC finish on their steel slides for corrosion resistance.
Barrel Length	The Glock 19 and 19x share an identical 4.02-inch barrel for consistent ballistic performance.
Overall Height	The Glock 19 and 19x have the same slide height, keeping their sight lines at an equal level.
Trigger Pull	Both the Glock 19 and 19x have a standard trigger pull weight of about 5.5 pounds.
Safety Features	The Glock 19 and 19x both include a trigger safety, firing pin safety, and drop safety.
Disassembly Method	Both the Glock 19 and 19x field-strip using the same simple slide-lock procedure for cleaning.
Aftermarket Support	The Glock 19 and 19x both enjoy a vast aftermarket for holsters, sights, and accessories.
Maintenance Needs	Both the Glock 19 and 19x require the same routine lubrication and cleaning schedule for reliability.
Operating Principle	The Glock 19 and 19x both operate on the short-recoil, locked-breech semi-automatic system.
Magazine Capacity	Both the Glock 19 and 19x ship with standard 17-round magazines for high capacity.
Intended Users	The Glock 19 and 19x are both marketed toward law enforcement, military, and civilian shooters.
Reliability Standard	Both the Glock 19 and 19x are known for their exceptional reliability across varied conditions.
Grip Angle	The Glock 19 and 19x both feature the same 109-degree grip angle for consistent handling.
Sight Type	Both the Glock 19 and 19x come standard with polymer white-dot sights for quick aiming.
Recoil Spring	The Glock 19 and 19x both use the same recoil spring assembly for reliable cycling.
Accessory Rail	Both the Glock 19 and 19x include a Picatinny rail for mounting lights and lasers.
Weight Range	The Glock 19 and 19x both weigh approximately 21 ounces unloaded, offering similar carry weight.
User Training	Both the Glock 19 and 19x require the same manual of arms for safe operation and handling.
Maintenance Cost	Both the Glock 19 and 19x use identical parts, keeping replacement and repair costs similar.
Durability Expectation	The Glock 19 and 19x are both built to endure high round counts with minimal part wear.
Holster Compatibility	Both the Glock 19 and 19x fit many of the same holster models designed for the Glock 19.
Legal Classification	Both the Glock 19 and 19x are classified as semi-automatic pistols under most firearm laws.
Manufacturer Origin	Both the Glock 19 and 19x are manufactured by Glock Ges.m.b.H. in Austria.
Resale Value	Both the Glock 19 and 19x retain strong resale value due to their widespread popularity and demand.
Long-Term Outcome	Both the Glock 19 and 19x provide a proven, long-lasting service life for the owner.

Glock 19 or 19x: Which Should You Choose?

Choose Glock 19 for concealed carry and daily wear; choose 19x for duty, range work, and larger hands. The single deciding variable is grip length, because it dictates both magazine capacity and how easily the pistol hides under clothing.

When to Use Glock 19

Choose Glock 19 when concealment is your top priority, when you carry appendix or inside the waistband, or when you have small to medium-sized hands. Its shorter grip reduces printing under a t-shirt and accepts 15-round magazines that fit flush with the frame.

When to Use 19x

Choose 19x when shooting comfort outweighs concealment, when you wear a duty holster or open carry, or when you have larger hands or wear gloves. Its full-length grip holds 17-round magazines, giving you a more secure purchase and two extra rounds per reload.

Common Misconceptions About Glock 19 and 19x

Common Myth	The Reality
The Glock 19x is just a Glock 19 with a different color.	The 19x has a full-size grip and a 17-round magazine, unlike the Glock 19's compact grip.
The Glock 19 and 19x have the exact same slide length.	Both the Glock 19 and 19x share an identical 4.02-inch barrel and slide length.
The 19x is heavier than the Glock 19 because it is bigger.	The 19x weighs 21.16 ounces empty, only slightly more than the Glock 19's 20.99 ounces.
The Glock 19x was designed for civilian concealed carry.	The 19x was built for the U.S. Army's Modular Handgun System trials, not for civilian CCW.
The Glock 19 and 19x use different calibers.	Both the Glock 19 and 19x fire the same 9x19mm Parabellum cartridge.
The 19x has a longer barrel than the Glock 19.	The Glock 19 and 19x both have a 4.02-inch barrel; the 19x's length is in the grip.
The Glock 19x is a compact pistol like the Glock 19.	The 19x is a crossover pistol with a compact slide but a full-size grip frame.
The 19x cannot use standard Glock 19 magazines.	The 19x accepts all Glock 19 magazines, though it ships with a 17-round magazine.
The Glock 19 is more accurate than the 19x at the range.	Both the Glock 19 and 19x have the same barrel and trigger, offering identical mechanical accuracy.
The 19x has a worse trigger than the Glock 19.	The Glock 19 and 19x share the same Safe Action trigger with a 5.5-pound pull.
The Glock 19x is a Gen 5 Glock 19 with a different frame.	The 19x is a Gen 5 design, but its frame is a full-size Glock 17 frame, not a Glock 19 frame.
The 19x is harder to conceal than the Glock 19.	The 19x's longer grip makes it harder to conceal than the Glock 19's shorter grip for most users.
The Glock 19 and 19x have different magazine capacities.	The Glock 19 ships with a 15-round magazine, while the 19x ships with a 17-round magazine.
The 19x is a limited edition or discontinued model.	The 19x is a standard production model in Glock's lineup, not a limited run.
The Glock 19 is better for home defense than the 19x.	Both the Glock 19 and 19x are equally reliable for home defense, differing mainly in grip size.
The 19x has a different recoil spring than the Glock 19.	The Glock 19 and 19x use the same recoil spring assembly and guide rod.
The Glock 19x is a subcompact or micro pistol.	The 19x is a full-size framed pistol, not a subcompact, unlike the smaller Glock 19.
The 19x has a metal frame, unlike the Glock 19.	Both the Glock 19 and 19x have a polymer frame with a steel slide.
The Glock 19 and 19x have different sight heights.	The Glock 19 and 19x both come with standard Glock polymer sights of the same height.
The 19x is less reliable than the Glock 19 in adverse conditions.	The 19x passed the Army's extreme dust and mud tests, matching the Glock 19's reliability.
The Glock 19x is only available in coyote tan color.	The 19x is sold in coyote tan, but the Glock 19 is available in black and other colors.
The 19x has a manual safety, unlike the Glock 19.	Neither the Glock 19 nor the 19x has a manual safety, relying on trigger safeties.
The Glock 19 is a newer model than the 19x.	The Glock 19 debuted in 1988, while the 19x was introduced in 2017.
The 19x has a shorter grip than the Glock 19.	The 19x has a longer, full-size grip than the Glock 19's compact grip.
The Glock 19 and 19x have different slide serrations.	Both the Glock 19 and 19x feature the same Gen 5 front and rear slide serrations.
The 19x is not compatible with Glock 19 holsters.	Most Glock 19 holsters fit the 19x, but the longer grip may require an open-bottom holster.
The Glock 19x is a competition-only pistol.	The 19x is a duty pistol from the Army trials, not a competition-specific model.
The 19x has a heavier trigger pull than the Glock 19.	The Glock 19 and 19x both have a 5.5-pound trigger pull, with no difference in weight.
The Glock 19 is a full-size pistol like the 19x.	The Glock 19 is a compact pistol, while the 19x is a full-size framed pistol.
The 19x is a Glock 17 slide on a Glock 19 frame.	The 19x is a Glock 19 slide on a full-size Glock 17 frame, the opposite of the myth.

Conclusion

Difference Between Glock 19 and 19x comes down to the grip and slide. The 19x pairs a full-size grip with a compact slide, while the Glock 19 keeps both compact. Choose the 19x for a larger grip and better control. Choose the Glock 19 for easier concealment and compatibility with standard holsters.

FAQs on Difference Between Glock 19 and 19x

What is the main difference between the Glock 19 and the Glock 19X?: The main difference is the grip length, as the Glock 19X uses the longer full-size Glock 17 frame with a 19-length slide and barrel.
Which is better for concealed carry, the Glock 19 or the Glock 19X?: The Glock 19 is better for concealed carry because its shorter grip reduces printing and makes the firearm easier to hide under clothing.
Is the Glock 19X more expensive than the Glock 19?: Yes, the Glock 19X typically costs more than the Glock 19 because it includes factory night sights, a lanyard loop, and a coyote-tan finish.
Are Glock 19 magazines compatible with the Glock 19X?: Yes, all standard Glock 19 magazines are fully compatible with the Glock 19X since they share the same magazine well design.
What is a common beginner mistake when choosing between the Glock 19 and the Glock 19X?: A common beginner mistake is assuming the 19X is smaller than the 19, when it actually has a longer grip that is harder to conceal.
Can I swap the slide from a Glock 19 onto a Glock 19X frame?: Yes, you can swap the slide from a Glock 19 onto a Glock 19X frame because both use the same compact slide dimensions and locking block.
Is the Glock 19X considered a full-size or compact pistol?: The Glock 19X is considered a crossover pistol because it combines a compact slide with a full-size grip for a hybrid configuration.
Which pistol has better accuracy, the Glock 19 or the Glock 19X?: Both pistols have identical accuracy because they share the same barrel length, rifling, and sight radius, so accuracy differences are negligible.
Is the Glock 19X safe for duty use compared to the Glock 19?: Yes, the Glock 19X is safe for duty use since it was originally designed for the US Army Modular Handgun System trials and passed rigorous testing.
Can I switch from carrying a Glock 19 to a Glock 19X without changing holsters?: No, you cannot switch without changing holsters because the 19X's longer grip requires a holster designed specifically for its full-size frame profile.