The SHIELD MAG EXT +5/4 FOR GLK19/23 GLD by Shield Arms is a premium Glock 19/23 Magazine Extension designed to enhance your firearm's performance and capacity. This anodized magazine extension, crafted from durable billet 6061 aluminum, seamlessly adds 5 rounds to your Glock 19 magazine and 4 rounds to your Glock 23 magazine, offering a significant Glock magazine capacity increase. Its unique easy access floor plate design allows for effortless maintenance, enabling you to service or clean the magazine body without removing the extension. This feature, combined with index cuts on the extension body, ensures a secure grip when retrieving from a magazine pouch. The extension is compatible with OEM Glock 13 and 15 round magazines and fits most aftermarket flared mag wells, making it a versatile addition to your firearm accessories. Proudly made in the USA, this +5 Magazine Extension for Glock 19 and +4 Magazine Extension for Glock 23 comes with a +10% power spring, ensuring reliable performance. The Shield Arms Spring for Life guarantee and a lifetime warranty provide peace of mind, underscoring the product's quality and durability. With its striking gold anodized finish, this magazine extension not only enhances functionality but also adds a touch of style to your firearm. Whether you're a competitive shooter or a firearm enthusiast, the Shield Arms Glock 19/23 Magazine Extension is an essential upgrade for those seeking increased capacity and reliability.