Elite Tactical Systems (ETS) builds this extended magazine (part no. GLK-9-170) for the Glock 17, 18, 19, 19X, 26, 34, and 45, compatible across Gen 1 through Gen 5 models, chambered in 9mm Luger. Built from extreme-impact-resistant advanced polymer with superior heat, cold, and UV resistance, the translucent, creep-resistant body holds a competition-legal 27 rounds without spreading at the feed lips during long-term loaded storage. The base plate is interchangeable with ETS’s line of double-stack magazines and designed for easy disassembly. For Elite Tactical Systems Group owners who compete or want extra capacity, this handgun magazine is a high-capacity, competition-legal option.

Key Specifications

• Chambered in 9mm Luger.
• Holds 27 rounds in an extended, competition-legal body.
• Compatible with the Glock 17, 18, 19, 19X, 26, 34, and 45, Gen 1-5.
• Molded from translucent, impact-resistant polymer.
• Resists heat, cold, and UV exposure.
• Creep resistant, so feed lips and body won’t spread under long-term loaded storage.
• Base plate is interchangeable with ETS’s double-stack line and designed for easy disassembly.
• Carries the manufacturer’s Pistol Mags model designation.
• Classified by the manufacturer as High Capacity.
• Weighs approximately 0.27 lb as shipped.

Frequently Asked Questions

What does competition-legal mean here? The 27-round capacity is built to stay within common competition-division round-count rules while still extending well past a factory Glock magazine.

What Glocks does it fit? The 17, 18, 19, 19X, 26, 34, and 45, across Gen 1 through Gen 5.

Buy the ETS Competition-Legal Glock 27-Round Magazine

An extended, competition-legal magazine built from tough translucent polymer, this ETS spare is a smart pick for USPSA/IDPA-style shooters and range use alike. Order it from our Lubbock, Texas gun shop for fast, insured shipping.