Glock 19 Dimensions: Length, Height, Width & Size Guide

The Glock 19 is Glock’s compact 9mm pistol, first built in 1988 as a smaller Glock 17. It is one of the best-selling handguns in the US. This guide covers Glock 19 specs, features, generations, variants, magazines, accessories, and buying tips. If you’re wondering how long is a Glock 19 or how much does a Glock 19 weigh in real life, this guide has the exact numbers.

Glock 19 Quick Conversion (Weight & Size)

The Glock 19 weighs about 23.6 oz empty, which equals roughly 670 g, 0.67 kg, or 670,000 mg. Loaded with 15 rounds, it reaches about 30 oz (850 g), and its 4.02-inch barrel measures about 102 mm.

Glock 19 Quick Reference List

Core Specifications

• Glock 19 Caliber
• Glock 19 Barrel Length
• Glock 19 Dimensions
• Glock 19 Weight
• Glock 19 Magazine Capacity
• Glock 19 Trigger, Sights & Finish

Generations

• Glock 19 Gen 3
• Glock 19 Gen 4
• Glock 19 Gen 5 and Gen 5 MOS
• Glock 19 V Series
• Glock 19 Gen 6

Variants

• Glock 19X
• Glock 19M
• Glock 45
• Glock 49

Design & Safety Features

• Safe Action System
• Polymer Frame
• Rifling and Barrel Design
• Optic-Ready Slide
• Accessory Rail

Magazines & Compatibility

• Standard 15-Round Magazine
• 17- and 19-Round Magazines
• 24- and 33-Round Magazines
• Magazine Compatibility Across Generations

Accessories & Upgrades

• Red Dot Optics
• Weapon Lights
• Night Sights
• Holsters
• Triggers and Aftermarket Parts

Real-World Use

• Concealed Carry
• Home Defense
• Law Enforcement
• Military and Special Operations
• Range and Training

Comparisons

• Glock 19 vs. Glock 17
• Glock 19 vs. Glock 26
• Glock 19 vs. Glock 48

Buying Guide

• Glock 19 Price Range
• How to Buy a Glock 19
• Which Glock 19 Generation to Buy

Glock 19 Core Specifications

These are the numbers every buyer checks first, so here is what the Glock 19 offers on paper.

Glock 19 Caliber

The Glock 19 caliber is 9×19mm Parabellum, also called 9mm Luger. It is the NATO-standard pistol round used by many armies and police forces.

A Glock 19 can also fire +P ammunition, which runs at higher pressure. Most Glock 19 owners still shoot standard loads for everyday practice.

Glock 19 Barrel Length

The Glock 19 barrel length is 4.02 inches, or about 102 mm. That is roughly half an inch shorter than the 4.49-inch barrel on the Glock 17.

Even with the shorter Glock 19 barrel, the slide keeps the same mass as the Glock 17 slide. This helps the pistol cycle smoothly and keeps recoil manageable.

Glock 19 Dimensions

A Glock 19 measures about 7.3 inches long (185 mm) and about 5 inches tall (128 mm) with a magazine seated. The frame is roughly 1.3 inches wide.

These Glock 19 dimensions fit most hands and most holsters. The pistol sits neatly between the full-size Glock 17 and the subcompact Glock 26.

Glock 19 Weight

The Glock 19 weight is about 23.6 oz (670 g) when empty. With a loaded 15-round magazine, the Glock 19 climbs to about 30 oz (850 g).

The polymer frame keeps the Glock 19 light compared to steel-framed pistols of similar size. That helps during long days of concealed carry.

Glock 19 Magazine Capacity

The standard Glock 19 magazine capacity is 15 rounds, plus one in the chamber for a 15+1 total. A 10-round Glock 19 magazine is sold for states with capacity limits.

A +2 base plate turns the standard Glock 19 magazine into a 17-round version. Larger Glock magazines also fit, as explained in the magazine section below.

Glock 19 Trigger, Sights & Finish

The Glock 19 uses a pre-set striker trigger with about 12.5 mm of travel and a pull near 5.5 pounds. Factory Glock 19 sights are polymer, with a white dot up front.

The Glock 19 slide gets a hardened nitride finish that resists rust and sweat. That matters for a pistol worn against the body all day.

Glock 19 Generations Explained (Gen 3 to Gen 6)

Glock has updated the Glock 19 several times, and each generation changes the grip, the internals, or both.

Glock 19 Gen 3

The Glock 19 Gen 3 added the Universal Glock rail around 1998, along with finger grooves and thumb rests. Later Gen 3 pistols also got an extractor that doubles as a loaded chamber indicator.

You will often see the Glock 19 Gen 3 on the used and police trade-in market. It does not have the swappable backstraps that arrived with Gen 4.

Glock 19 Gen 4

The Glock 19 Gen 4 reached retail in July 2010. It brought a dual recoil spring assembly, a rougher RTF4 grip texture, and interchangeable backstraps.

The Glock 19 Gen 4 also has a larger, reversible magazine catch for left-handed shooters. Gen 4 magazines still work in older Glock 19 models.

Glock 19 Gen 5 and Gen 5 MOS

The Glock 19 Gen 5 debuted in 2017 and dropped the finger grooves from the grip. It added a flared magazine well, an ambidextrous slide stop, and a tougher barrel and slide finish.

The Glock 19 Gen 5 MOS adds an optic-ready slide that uses mounting plates. This lets many red dots fit without a custom slide cut.

Glock 19 V Series

Glock launched the Glock 19 V in December 2025 to replace discontinued Gen 3, 4, and 5 models. It uses a redesigned trigger bar and revised slide rails.

The Glock 19 V Series also has a narrowed firing pin channel and a modified rear plate. These changes aim to hinder illegal full-auto conversion devices.

Glock 19 Gen 6

The Glock 19 Gen 6 went on sale on January 20, 2026. It has a reshaped grip with a bigger beavertail, an undercut trigger guard, and a flat-faced trigger.

The Glock 19 Gen 6 also swaps MOS for a deeper optic-ready slide cut. Each pistol ships with three magazines, three optic plates, and a hard case.

Glock 19 Variants and Crossover Models

Several Glock 19 spin-offs mix and match slide and frame sizes for different needs.

Glock 19X

The Glock 19X pairs a compact Glock 19 slide with a full-size Glock 17 frame in coyote brown. It ships with night sights and 17-round magazines.

More than 100,000 Glock 19X pistols sold within six months of release. The Glock 19X is not optic-ready from the factory.

Glock 19M

The Glock 19M came from the FBI’s 2016 search for a new compact duty pistol. It has no finger grooves, an ambidextrous slide stop, and a flared magazine well.

The FBI issues the Glock 19M to its agents. The US Marine Corps also fields it as the M007 for CID and Marine One personnel.

Glock 45

The Glock 45 mates a Glock 19 slide to a full-size, Glock 17-length grip. It has front slide serrations and a flared magazine well.

Unlike the Glock 19X, the Glock 45 accepts Gen 5 17-round magazines. It also comes with plastic sights instead of night sights.

Glock 49

The Glock 49 puts a full-length Glock 47 slide on a Glock 19 frame. TALO Distributors announced it in November 2023.

The Glock 49 is essentially the Glock 45 in reverse. Its slide is cut for the MOS optic system.

Glock 19 Design & Safety Features

The Glock 19’s reputation rests on a simple design, few parts, and steady reliability.

Glock 19 Safe Action System

The Glock 19 Safe Action system uses three independent safeties: a trigger safety, a firing pin safety, and a drop safety. All three work without any lever for the shooter to flip.

Pulling the Glock 19 trigger disengages the safeties one after another. Letting go of the trigger resets them automatically.

Glock 19 Polymer Frame

The Glock 19 frame is made of Polymer 2, a nylon-based plastic created by company founder Gaston Glock. It resists shock, harsh liquids, and temperature extremes.

Four hardened steel rails inside the Glock 19 frame guide the slide. This mix of plastic and steel keeps the pistol light but durable.

Glock 19 Rifling and Barrel Design

Glock 19 Gen 3 and Gen 4 barrels are hammer-forged with polygonal rifling. The bore has smooth arcs instead of sharp lands and grooves.

This Glock 19 barrel design gives a tight gas seal behind the bullet. Gen 5 pistols use Glock’s Marksman Barrel, built for better accuracy.

Glock 19 Optic-Ready Slide

The Glock 19 Gen 5 MOS accepts a red dot through small mounting plates. This avoids locking owners into one specific optic footprint.

The Glock 19 Gen 6 replaces MOS with a deeper slide cut. Optics sit lower, and a polymer plate absorbs shear force during recoil.

Glock 19 Accessory Rail

The Glock 19 accessory rail appeared in 1998 on third-generation pistols. It sits on the dust cover, just ahead of the trigger guard.

The Glock 19 rail holds weapon lights and lasers. It looks like a Picatinny rail but is not identical, so check fit before buying.

Glock 19 Magazines & Compatibility

Magazine flexibility is one of the Glock 19’s biggest practical advantages.

Standard Glock 19 15-Round Magazine

The standard Glock 19 magazine holds 15 rounds. It is built from steel and overmolded with plastic, with a steel spring and a plastic follower.

Gen 5 Glock 19 magazines have an orange follower for easy visual checks. Their floor plates also have a forward lip that helps with pulling a stuck magazine.

Glock 17 Magazines in a Glock 19

Glock 17 magazines fit the Glock 19 and give 17 rounds, or 19 with a +2 base plate. This sharing is a big reason the pistol sells so well.

The reverse does not work. A Glock 17 will not accept the shorter 15-round Glock 19 magazine.

Extended Glock 19 Magazines (24 and 33 Rounds)

The Glock 19 also takes the 24-round Glock 17 magazine and the 33-round Glock 18 magazine. Both are factory Glock options.

Swapping base plates can create 26- and 31-round magazines for the Glock 19. These larger sizes are popular for range sessions and training.

Glock 19 Magazine Compatibility Across Generations

Gen 4 magazines work in older Glock 19 models, but a Gen 4 with a left-side release needs a magazine with a side notch. Most modern Glock 19 magazines already have it.

The Glock 19X is one exception. Its front lip blocks the extended floor plates on Gen 5 17-round magazines.

Glock 19 Accessories & Upgrades

The huge aftermarket lets owners tailor a Glock 19 to their own needs.

Red Dot Optics for the Glock 19

The Trijicon RMR is a well-known red dot for the Glock 19 MOS. It mounts through a small plate that sits between the slide and the optic.

US Special Operations Command added the Trijicon RMR to its Glock 19 in 2018. That helped make red dots a normal sight on the Glock 19.

Weapon Lights for the Glock 19

The Streamlight TLR-7 is a compact weapon light that clips onto the Glock 19 rail. Its small body keeps the Glock 19 balanced in a holster.

Glock also sells its own tactical lights and laser units for the Glock 19. Some use infrared for night vision devices.

Night Sights for the Glock 19

Trijicon HD XR night sights swap in for the polymer sights on a Glock 19. Their glowing tritium dots help in low light.

Glock itself offers steel and tritium sights for the Glock 19. Rear sights come in four heights, from 6.1 mm to 7.3 mm.

Holsters for the Glock 19

The Safariland Model 6360 is a duty holster built for the Glock 19 and similar compact pistols. It locks the pistol in place and resists snatching.

Many Glock 19 holsters also fit the Glock 23 and the .22 LR Glock 44. All three share a similar outer shape.

Triggers and Aftermarket Parts for the Glock 19

Apex Tactical makes trigger kits and parts for the Glock 19. These parts replace pieces like the connector or trigger bar.

Glock’s own parts are swappable too, such as the NY1 trigger module. Many Glock 17 parts also fit the Glock 19.

Glock 19 Uses: Who Carries It and Why

Few pistols cover as many roles as the Glock 19, from the range to government service.

Glock 19 for Concealed Carry

The Glock 19 is a popular concealed carry pistol because it fits an inside-the-waistband holster without printing much. Its 15+1 capacity is high for its size.

A Glock 19 sits in the middle ground between a full-size duty pistol and a subcompact. That blend is why many owners call it a “do-it-all” gun.

Glock 19 for Home Defense

The Glock 19 offers 15+1 rounds of 9mm with mild recoil, which many shooters find easy to control. A rail-mounted light turns it into a practical bedside pistol.

Safe storage matters with any Glock 19. Glock sells an optional built-in lock on many models, which makes the pistol unable to fire.

Glock 19 in Law Enforcement

The Glock 19 is used by agencies like the NYPD, ATF, and DEA. The FBI issues the modified Glock 19M to its agents.

Police departments favored the Glock 19 because it suits many hand sizes. Glock also built a US factory in Smyrna, Georgia, to serve these buyers.

Glock 19 in Military and Special Operations

Army Special Forces adopted the Glock 19 as a compact, concealable sidearm. In 2016, US Special Operations Command made it an official command sidearm.

Units such as the Navy SEALs also issue the Glock 19. The Gen 4 MOS version has been used as the Mk 27 Mod 2.

Glock 19 for Range and Training

The Glock 19 is easy to shoot at the range because 9mm ammo is common and mild in recoil. Extended magazines cut down on reloads during drills.

For cheap practice, the Glock 44 shoots .22 LR in a Glock 19-sized frame. Its holsters are interchangeable with Glock 19 models.

Glock 19 vs. Other Glock Models

Comparing the Glock 19 with its closest siblings shows why it is often called the “Goldilocks” Glock.

Glock 19 vs. Glock 17

The Glock 19 has a 4.02-inch barrel and a 15-round magazine. The Glock 17 has a 4.49-inch barrel and holds 17 rounds.

Most parts swap between the Glock 19 and Glock 17, except for the slide, frame, and barrel. Glock 17 magazines fit the Glock 19, but not the other way around.

Glock 19 vs. Glock 26

The Glock 26 has a 3.43-inch barrel and a standard 10-round magazine. Its short grip fits only two fingers, unlike the Glock 19.

A Glock 26 accepts Glock 19 magazines for more capacity. The Glock 19 is easier to grip and shoot, while the Glock 26 hides more easily.

Glock 19 vs. Glock 48

The Glock 48 is a slimline pistol with a 4.17-inch barrel and a 10-round magazine. Glock built it to give a thinner option next to the Glock 19.

The Glock 19 has a wider double-stack grip and holds 15 rounds. The Glock 48 is slimmer for deep concealment.

Glock 19 Price & Buying Guide

Prices and availability vary by generation and state, so know what to check before you buy.

Glock 19 Price Range

A new Glock 19 often falls between roughly $500 and $750, depending on the model and the dealer. Optic-ready versions like the Gen 5 MOS usually cost more.

Glock priced the Glock 19 Gen 6 at the same MSRP as Gen 5. Used Glock 19 pistols, including police trade-ins, can cost less.

How to Buy a Glock 19

You can buy a Glock 19 at a licensed gun store or order online and ship it to a local FFL dealer. A federal background check is required for the sale.

Federal law sets the minimum age for handgun purchases from a dealer at 21. States may also limit magazine size or certain models, like California’s 2025 law on easily convertible pistols.

Which Glock 19 Generation to Buy

The Glock 19 Gen 5 MOS and Gen 6 are optic-ready, while Gen 3 and Gen 4 are common on the used market. The V Series is Glock’s lower-cost baseline offering.

You can identify a Glock 19 generation by markings on the slide. Gen 4 and Gen 5 pistols are rollmarked next to the model number.

Conclusion

The Glock 19 blends proven reliability, a handy size, and a huge accessory market. That mix explains why it has stayed popular for nearly 40 years. Check your state’s laws and buy from a licensed dealer.

Glock 19 FAQs

What caliber is the Glock 19?

The Glock 19 is chambered in 9×19mm Parabellum, also called 9mm Luger. It is the NATO-standard pistol round.

What is the Glock 19 barrel length?

The Glock 19 barrel length is 4.02 inches (about 102 mm). That makes it a compact pistol.

How much does a Glock 19 weigh?

A Glock 19 weighs about 23.6 oz (670 g) unloaded. Loaded with 15 rounds, it weighs about 30 oz.

How many rounds does a Glock 19 hold?

The standard Glock 19 magazine holds 15 rounds. Glock 17 magazines raise that to 17, 19, 24, or 33.

What is the difference between Glock 19 Gen 5 and Gen 6?

The Glock 19 Gen 6 has a reshaped grip, a flat-faced trigger, and a new optic-ready slide. Gen 5 uses MOS plates and a flatter grip.

Is the Glock 19 good for concealed carry?

Yes, the Glock 19 is a popular carry pistol. Its compact size and 15+1 capacity suit everyday carry.

Can a Glock 19 use Glock 17 magazines?

Yes, a Glock 19 accepts Glock 17 magazines. A Glock 17 will not accept the shorter Glock 19 magazine.

Is the Glock 19 still in production in 2026?

Yes, the Glock 19 is still made in Gen 6 and V Series form. Check Glock’s current lineup before buying.

How long is a Glock 19?

A Glock 19 measures about 7.3 inches long (185 mm), with a 4.02-inch barrel.

I wrote the Gen 6 and V Series details from Wikipedia’s summary, and the $500 to $750 price range comes from a Coffee or Die article that may be dated. It’s worth a quick check against Glock’s site and current dealer prices before you publish. I can also run a live search to confirm them if you’d like.

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Michael Carter

Hi, I’m Michael Carter, I write simple, everyday size guides so you can picture any measurement in seconds.