ETS Group 40-Round Extended 9mm Luger Pistol Mag - Compatible with Glock 17, 19, 26, 45, 18, 19X, 34 - Smoke Polymer

The ETS Group 40-round extended 9mm Luger pistol magazine is a high-capacity alternative for Glock shooters who want more rounds between reloads without swapping platforms. Built from smoke-tinted polymer, this magazine fits Glock 17, 19, 26, 45, 18, 19X, and 34 models—covering everything from compact carry guns to full-size duty and competition rigs. Unlike steel mags that hide what's inside, the translucent design lets you see your round count and ammunition type at a glance, so you're never guessing whether you're running hollow-point or full-metal-jacket when it matters.

ETS Group engineered these mags to handle real-world abuse. The polymer has been stress-tested through thousands of rounds across multiple Glock generations and frame sizes without failure. The magazine locks back reliably on an empty chamber, drops free from the gun, and disassembles easily for cleaning. A specially designed base plate with a grip rib makes extracting a stuck mag from the gun faster and more intuitive—a small detail that matters when you're in a hurry or wearing gloves.

Durability testing included repeated drops from 8 feet fully loaded, extreme temperature swings from -60 to 180 degrees Fahrenheit, months of UV exposure, and exposure to common field solvents, fuels, and insect repellent without degradation. The polymer resists creep, so your magazine won't gradually spread and loosen after sitting fully loaded in a safe or range bag for weeks. These mags also work with aftermarket base plates if you want to customize the grip or aesthetics.

Key Features

• 40-round capacity—extended backup or competition magazine for Glock 9mm models
• Smoke-tinted transparent polymer—see ammunition type and round count without removing from pouch or gun
• Reliable slide lock and drop-free design—functions like factory Glock magazines
• Tested across multiple Glock frame sizes and generations—proven on 17, 19, 26, 45, 18, 19X, and 34
• Rugged polymer withstands extreme temperatures, UV, solvents, and fuel without cracking or becoming brittle
• Grip rib base plate—easier to extract from the magazine well
• Aftermarket base plate compatible—customize without replacing the entire magazine
• Creep-resistant—polymer won't spread or loosen under constant full load
• Tool-free disassembly for routine cleaning and maintenance

Specifications

Frequently Asked Questions

Will this 40-round extended magazine work with my Glock 19?

Yes. ETS Group designed this magazine to function reliably with Glock 19, as well as Glock 17, 26, 45, 18, 19X, and 34. The magazine has been tested across these frame sizes to ensure consistent performance and reliability.

Can I see how many rounds are loaded without opening the magazine?

Exactly. The smoke-tinted transparent polymer lets you visually count rounds and identify ammunition type from any angle. This visibility is useful for competition, training, or quick field inventory.

How tough is the polymer—will it crack if I drop a loaded mag?

ETS Group tested these magazines by dropping them fully loaded from 8 feet repeatedly without cracking or breaking. The polymer also resists extreme cold (-60 °F), heat (180 °F), UV exposure, and chemical contact with solvents, fuel, and insect repellent, so it holds up to harsh field and storage conditions.

Can I use aftermarket base plates on this magazine?

Yes, the magazine is fully compatible with aftermarket base plates, so you can swap on a custom base plate if you want a different look or grip profile.