The Shield Arms SAS15ME5BLK Magazine Extension is a premium upgrade for your Shield Arms S15 magazine, designed to enhance your shooting experience by adding an impressive 5 rounds to your existing capacity. Crafted from durable billet 6061 aluminum, this magazine extension is not only robust but also lightweight, ensuring it doesn't add unnecessary bulk to your firearm. The black anodized finish, achieved through a Type 2 anodizing process, provides a sleek, professional look while offering superior resistance to wear and corrosion. One of the standout features of this magazine extension is its unique easy access floor plate design, which allows for quick and hassle-free access to the spring and follower without needing to remove the extension from the magazine body. This thoughtful design makes maintenance and cleaning a breeze, ensuring your magazine remains in optimal condition. Additionally, the extension features index cuts on the body, enhancing grip and facilitating smooth retrieval from a magazine pouch. The Shield Arms SAS15ME5BLK is compatible exclusively with the Shield Arms S15 magazine and fits most aftermarket flared mag wells, making it a versatile addition to your firearm accessories. Proudly made in the USA, this magazine extension comes with a 12 coil plus power spring, ensuring reliable performance and feeding. Whether you're looking to increase your magazine capacity or simply upgrade your existing setup, the Shield Arms S15 Magazine Extension is an essential accessory for any firearm enthusiast seeking quality and functionality.