The Shield Arms Glock 17 17/rd Handgun Magazine with +5 Extension Black 9mm Luger 22/rd is a premium upgrade for your Glock 17, offering enhanced performance and reliability. This Glock 17 OEM magazine, featuring a robust anodized Shield Arms +5 magazine extension, elevates your magazine capacity to an impressive 22 rounds, making it an ideal choice for those seeking a Glock 17 magazine upgrade. The innovative easy access floor plate design allows for effortless maintenance, enabling you to access the spring and follower without detaching the extension from the magazine body. Crafted from durable billet 6061 aluminum and finished with a Type 2 anodized coating, this extension not only adds five rounds to your Glock 17 9mm magazine but also ensures a secure grip with its strategically placed index cuts. The Shield Arms Glock 17 +5 magazine is designed to fit OEM Glock magazines exclusively and is compatible with most aftermarket flared mag wells, providing versatility and convenience. Proudly made in the USA, this magazine extension comes with a Shield Arms lifetime warranty and the Spring for Life guarantee, ensuring long-lasting performance and peace of mind. Please note that using this extension with the Glock 19X requires the removal of the pistol's lanyard loop. With its superior construction and thoughtful design, the Shield Arms Glock 17 magazine extension is the perfect choice for enhancing your Glock 17 magazine capacity and overall shooting experience.