Glock 23 Review (2026): The Compact .40 That Armed America’s Cops

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Review: Glock 23 – The Compact .40 That Armed America’s Cops

Our Rating: 8.5/10

• RRP: $619 (MSRP, Gen 5)
• Street Price: $499-$559 new; $350-$450 police trade-in (Check our live pricing)
• Caliber: .40 S&W (converts to 9mm or .357 SIG with a barrel swap)
• Action: Striker-fired, Safe Action
• Capacity: 13+1
• Barrel Length: 4.02″
• Overall Length: 7.36″
• Weight: ~23.6 oz empty
• Generation: Gen 5 current (Marksman barrel, no finger grooves, flared magwell)
• Made in: Smyrna, Georgia, USA / Austria

Quick Take

The Glock 23 is the .40 S&W version of the legendary Glock 19: the same compact, concealable, utterly reliable pistol, chambered in the cartridge that armed American law enforcement for two decades. It’s a superb gun and, thanks to police trade-ins, a tremendous value.

For years the Glock 23 was the duty and detective pistol, riding in the holsters of countless cops and agents who wanted the .40’s extra punch in a package no bigger than a Glock 19. It earned the same bulletproof reliability reputation as every other Glock, and it’s still an excellent choice today. The twist is that as police departments returned to 9mm, a flood of cheap, lightly used G23s hit the market, making this one of the best value pistols going.

I shot a Gen 5 Glock 23 to see how the compact .40 holds up in the 9mm era. The answer: it’s every bit the reliable, accurate, concealable workhorse the Glock 19 is, with more energy per round and a bit more recoil to manage. If you like the .40 or want an unbeatable deal on a police trade-in, the G23 is a smart buy. If you want the softest-shooting, cheapest-to-feed option, its 9mm sibling is the easier call.

Best For: Concealed carry, home defense, and value hunters who want a proven compact Glock in .40 or a bargain police trade-in. See how the 9mm sibling compares in our Glock 19 review.

Why the Glock 23 Still Makes Sense

The Glock 23’s whole appeal is that it’s a Glock 19 that hits harder, in a package that carries exactly the same. Same compact frame, same 4-inch-class barrel, same concealability, but each round is a .40 S&W instead of a 9mm, splitting the difference between 9mm capacity and .45 punch.

That combination made it the darling of American law enforcement through the 1990s and 2000s. The .40 was seen as the ideal duty cartridge, and the compact 23 was easy to carry on or off duty. Countless agencies issued it, and it built the same reputation for going bang every time that made Glock famous. It is, mechanically, a proven and trusted design.

The reason to think twice is the cartridge’s changing fortunes. As 9mm defensive ammo improved and departments realized 9mm was cheaper, softer-shooting and higher-capacity for similar effect, the .40 fell out of favor and agencies switched back. That’s a double-edged sword for the buyer: .40 ammo is now pricier and less common than 9mm, but the resulting wave of police-surplus Glock 23s means you can buy a battle-tested pistol for a song. For the value shopper, that trade is a gift.

Glock 23 Generations and Options

The Glock 23 has evolved across generations and pairs with related models. Here’s how to choose.

Competitor Comparison

The compact defensive pistol field is crowded. Here’s how the G23 stacks against the guns you’ll cross-shop.

Verdict: If you want the softest-shooting, cheapest-to-feed option, the 9mm Glock 19 is the smarter buy. If you want the .40’s extra punch or an unbeatable police-trade-in deal, the Glock 23 is a proven, reliable steal.

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Features and Build Quality

The Action and Reliability

The Glock 23 runs the same Safe Action striker system that made Glock a household name, and it’s as reliable as ever. There’s no manual safety, no decocker, just a consistent trigger pull every time and three internal safeties. It’s simple, fast to learn, and famously hard to break.

Reliability is the whole point. The G23 feeds, fires and extracts through dirt, water, and neglect, and its police service proves it in the real world. The .40 chambering runs on the same beefed-up frame Glock uses across the compact line, so durability is a non-issue. This is a pistol you can trust with your life, which is exactly why so many cops did.

Gen 5 Upgrades and Shooting the .40

The Gen 5 update meaningfully improves the G23. The Glock Marksman Barrel tightens accuracy, the removal of finger grooves and the flared magwell improve the grip and reloads, the ambidextrous slide stop helps lefties, and the nDLC finish is tougher. It’s the best the platform has ever shot.

The one thing you can’t engineer away is the .40’s recoil. It’s snappier than 9mm, a sharper push that makes fast follow-up shots a touch slower and takes a bit more practice to master, especially in a compact, lightweight gun. It’s very manageable, and many shooters barely notice, but it’s the honest trade for the .40’s extra energy. If you shoot a lot and want the softest experience, this is where the 9mm G19 pulls ahead; if you want more punch per round, the 23 delivers.

At the Range: 400-Round Test

I ran 400 rounds of mixed .40 S&W through a Gen 5 Glock 23, shooting for groups at 10 and 15 yards and testing recoil, reliability and concealed carry. Here’s how the compact .40 performed.

Reliability

Flawless, as expected from a Glock. Not a single malfunction across 400 rounds of everything from cheap FMJ to premium hollow points. This is the entire Glock value proposition, and the 23 delivers it completely. Feed it and it runs; that’s the deal, and it’s a good one.

Accuracy

Very good, and better than older generations thanks to the Marksman barrel. I held groups around two to three inches at 15 yards, plenty for defense and comfortably minute-of-bad-guy well beyond. The .40 hits with authority on steel. For a compact defensive pistol, the accuracy is more than sufficient.

Recoil and Carry

The .40 recoil is the snappy part, noticeably sharper than a 9mm G19, though the Gen 5 grip and a firm hold keep it controllable. Follow-up shots are a hair slower than with 9mm. As a carry gun it’s identical to the G19: compact, flat, and easy to conceal in an IWB holster all day. It’s a very carryable pistol with a bit more bite than its 9mm twin.

Ammunition Log

• Federal American Eagle 180gr FMJ: 200 rounds, flawless
• Blazer Brass 165gr FMJ: 100 rounds, best accuracy
• Speer Gold Dot 180gr: 60 rounds, reliable defensive load
• Winchester white box 165gr: 40 rounds, ran clean

Performance Testing Results

Reliability (10/10)

Total Glock reliability, proven in police service and confirmed in testing. It runs any ammo in any condition without complaint. If you need a pistol you can bet your life on, the G23 is one of them. A perfect score, and the reason to buy any Glock.

Accuracy (8/10)

Very good, improved by the Gen 5 Marksman barrel. Two-to-three-inch groups at 15 yards is solid compact-pistol accuracy, and the .40 hits hard. It’s not a target pistol, but it’s more than accurate enough for its defensive purpose.

Shootability (8/10)

Easy to run, with the caveat of the .40’s snappier recoil. The Gen 5 grip helps, but fast strings take more practice than with a 9mm. Concealment and handling are excellent, identical to the beloved G19. Only the recoil keeps it from a higher score.

Value (8/10)

Strong, and outstanding on the used market. A new Gen 5 is fairly priced, but the flood of police trade-in G23s at $350 to $450 makes this one of the best value defensive pistols anywhere. Pricier .40 ammo is the only knock. Buy a trade-in and it’s a steal.

Common Questions and Tips

• Buying a police trade-in: Trade-in G23s are a fantastic value. Expect holster wear on the finish, which is cosmetic, and check the bore and internals for health. A worn-looking trade-in with a good barrel will run for tens of thousands more rounds.
• Add a 9mm conversion barrel: A drop-in 9mm barrel plus 9mm magazines lets you practice cheaply with soft-shooting 9mm and swap back to .40 for carry. It’s the single best accessory for a G23 if you shoot a lot.
• Managing the .40 recoil: A firm, high grip and a little practice tame the snappier .40 recoil. A slightly heavier recoil spring or aftermarket grip texture can help sensitive shooters. It’s very manageable once you’re used to it.
• Magazines: The G23 takes the same magazines as the full-size G22 (which hold more) and the subcompact G27, giving you flexible capacity options across the .40 Glock family.

Who Should NOT Buy the Glock 23

The Glock 23 is a superb pistol, but it’s the wrong gun for some buyers. Here’s who should look elsewhere.

• The 9mm-focused shooter: If you want the softest recoil, highest capacity and cheapest ammo, the identical-size Glock 19 in 9mm is simply the better modern choice.
• The recoil-sensitive buyer: The .40’s snappier recoil is harder for new or recoil-sensitive shooters to manage. A 9mm compact will be easier to shoot well.
• The high-volume practicer: .40 ammo costs more and is less available than 9mm, so if you shoot thousands of rounds, feeding a .40 gets expensive. A 9mm or a conversion barrel eases that.
• The deep-concealment carrier: If you want the smallest possible .40 Glock, the subcompact Glock 27 conceals deeper than the compact 23.

The Verdict

The Glock 23 is a Glock 19 that hits harder: the same compact, concealable, utterly reliable pistol in the .40 S&W that armed American law enforcement for two decades. It’s an excellent gun, and thanks to a flood of police trade-ins, one of the best values in defensive pistols.

The only real question is the cartridge. The .40’s snappier recoil and pricier, less-common ammo are the trade for its extra energy, and for most buyers today the softer, cheaper, higher-capacity 9mm G19 is the more practical pick. But if you want the .40’s punch, or you spot a lightly used police trade-in at bargain money, the G23 is a proven, reliable, carryable workhorse that will never let you down.

Buy the Gen 5 for the newest features, or hunt a trade-in for an unbeatable deal, add a 9mm conversion barrel for cheap practice, and carry it with confidence. It does everything the beloved Glock 19 does, with more energy per shot. For the .40 fan and the value shopper, it’s a smart, dependable choice.

Final Score: 8.5/10 – A proven, reliable compact .40 and, as a police trade-in, one of the best value pistols going.

Best For: Concealed carry and home defense for the .40 fan, and value hunters chasing a police trade-in. Compare it to the 9mm sibling in our Glock 19 review.

FAQ: Glock 23