Features:

• Fits the .45 Glock 21 30 41 (does not fit SF).
• Extended 18-round capacity
• Due to the wide variety of extensions for Glock our mag base is designed to be compatible with Glock extensions
• Easy disassembly with our 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