These ETS 30 round magazines have worked great with the EP45 from our testing, and provide a much higher capacity than Glock does for the Glock 21 platform. 

MAG FEATURES

• Fits the .45 Glock 21, 30, 41 (does not fit SF).
• Extended 30-round capacity
• Due to the wide variety of extensions for Glock, the mag base is designed to be compatible with Glock extensions
• Easy disassembly with a specially designed base plate
• Ergonomically designed floor plate makes it easy to grab from mag pouches
• Lifetime Warranty

ADVANCED POLYMER BENEFITS

• Extreme Impact Resistance—won't crack or break when dropped
• Very resistant to harsh chemicals
• Superior heat, cold and UV resistance—won’t become brittle over time even when exposed to harsh environments or extreme cold
• Translucent body—allowing you to see your ammo count and type
• Creep resistant—the feed lips and body won't spread when being stored long term even when fully loaded

Disclaimer: this is not an Extar product. For warranty and replacement parts for these magazines, please contact ETS Group directly.