Enhance your Glock 17 with the Shield Arms Glock 17 +5 Round Magazine Extension. Crafted from high-quality anodized aluminum, this extension boosts your capacity while maintaining optimal performance. This magazine extension is designed for seamless integration with Glock OEM 17 round magazines, providing a reliable upgrade for enthusiasts and professionals alike. Its user-friendly floor plate allows easy access to internal components for maintenance. Fits Glock 17/34/19X/45 Adds 5 Rounds to the Glock 17 Machined from Billet 6061 Aluminum Type 2 Anodized Includes a +10% Power Spring Invest in durability and performance with a lifetime warranty included.