Compare Glock products

Few firearms have shaped the modern handgun market the way Glock has. Since 1982, the Austrian company's polymer-framed, striker-fired pistols have become the default sidearm for a huge share of American law enforcement and one of the most popular choices for concealed carry, home defense, and competition. The design philosophy is simple and relentless: maximum reliability through minimum complexity. For shoppers on US-GUNDEALS, Glock is a mid-tier brand that punches well above its price in durability, parts availability, and resale value.

Glock makes pistols and nothing else — no rifles, shotguns, or revolvers. What it offers instead is a tightly focused lineup built around one proven action, available in a range of sizes and calibers, supported by what is arguably the largest aftermarket and holster ecosystem of any handgun on earth.

History & background

Gaston Glock, an Austrian engineer with a background in polymers, introduced his first pistol — the Glock 17 — in 1982 after it won an Austrian military contract. The "17" came from it being his 17th patent, not its capacity, though the coincidence with the 17-round magazine stuck. The pistol's polymer frame, striker-fired Safe Action system, and low parts count were genuinely revolutionary, and the design quickly spread to police and military users worldwide.

Glock established its U.S. subsidiary, Glock, Inc., in Smyrna, Georgia, in November 1985, and American production and distribution have been based there ever since. The compact Glock 19 followed in 1988 and went on to become one of the most popular handguns in the country. The lineup has evolved through numbered generations — Gen3, Gen4, Gen5, and the newest Gen6 — each refining ergonomics, barrels, and optics compatibility while keeping the core action intact.

What they're known for

The heart of every Glock is the Safe Action system: three passive, automatic safeties that prevent unintended discharge without any manual safety lever to disengage. Combined with a consistent striker-fired trigger pull from the first shot to the last, it makes the platform simple and intuitive to run — a real advantage for new shooters and a reason agencies value it for training large numbers of people.

Glock's modern features include the Glock Marksman Barrel for improved accuracy, the hard nDLC finish for corrosion and wear resistance, the Modular Optic System (MOS) for tool-free red-dot mounting on many models, and interchangeable backstraps (Gen4/Gen5) to fit different hand sizes.

The model lineup is organized by size and caliber:

• Full-size: Glock 17 (9mm, 17+1) and Glock 22 (.40 S&W) — duty and range guns with the longest sight radius in the standard line.
• Compact: Glock 19 (9mm) and Glock 23 (.40) — the do-everything middle size, hugely popular for carry and duty alike.
• Subcompact: Glock 26 (9mm) and Glock 27 (.40) — small "baby Glocks" that still accept full-size magazines.
• Slimline: Glock 43, 43X, and 48 (9mm) — thin single-stack-style guns purpose-built for deep concealment.
• Crossover: Glock 19X, 45, 47, and 49 (9mm) — mixing full-size grips with compact slides (or vice versa) for a balance of capacity and concealability. The Glock 47 was developed for U.S. federal agencies.
• Big-bore: Glock 20 and 29 (10mm Auto), Glock 21 (.45 ACP), and the long-slide Glock 40 (10mm) for hunting and outdoor backup.
• Rimfire: Glock 44 (.22 LR), a low-cost trainer that mirrors the Glock 19's ergonomics.

A practical strength worth knowing: larger-frame magazines feed smaller same-caliber Glocks (a Glock 17 magazine runs in a 19 or 26), which adds real flexibility if you own more than one.

Buying guide — which Glock is right for you

Concealed carry / EDC. For deep concealment, the slimline 43X or 48 in 9mm are the go-to picks. If you want more capacity and don't mind a bit more size, the Glock 19 remains the benchmark all-purpose carry gun.

Home defense and duty. The Glock 17 (full-size) or Glock 19 (compact) in 9mm are the standards. Choose an MOS or Gen6 optics-ready model if you plan to run a red dot.

Competition. The long-slide Glock 34 in 9mm is the dedicated USPSA/IDPA/Steel Challenge gun, with a longer sight radius and MOS optics cut. The crossover Glock 45 is also popular for Production-style shooting.

Outdoors and handgun hunting. Step up to 10mm Auto with the Glock 20, or the 6-inch Glock 40 MOS for more velocity and an optics platform; the Glock 21 covers .45 ACP fans.

Range training on a budget. The Glock 44 in .22 LR lets you practice with the same manual of arms at a fraction of 9mm ammo cost.

Two common pitfalls: don't reflexively buy the smallest model thinking "compact is always better" — for range and competition, a 17 or 19 shoots noticeably better than a subcompact. And if you want a red dot, buy an MOS or optics-ready model from the start rather than paying to mill a standard slide later.

Reputation & reviews

Glock's reputation for reliability is exceptionally well established, validated by decades of hard police and military use and by extensive U.S. coverage in outlets like American Rifleman, Guns & Ammo, and Shooting Illustrated. Factory endurance testing on newer models has run into the tens of thousands of rounds. The main critiques are familiar: every Glock is a polymer-framed gun, so shooters who prefer a heavier metal frame for recoil control look elsewhere, and the stock trigger has long been seen as merely adequate by competitors — something the flatter Gen6 trigger is meant to address. None of that has dented the platform's standing as the reliability and aftermarket benchmark.

Glock on US-GUNDEALS

Glock pistols are listed across the shops on US-GUNDEALS, covering the full range from slimline carry guns to full-size duty and competition models. Pricing is solidly mid-tier and very consistent thanks to Glock's huge production volume, which also means widespread availability and aggressive competition between dealers. Comparing current offers across our shops — by generation, caliber, and MOS/optics configuration — is the fastest way to land the exact model you want at the best available price.

Sources: https://us.glock.com/ https://us.glock.com/en/about/history https://en.wikipedia.org/wiki/Glock https://www.americanrifleman.org/