A brand new Shield Arms S15 Gen 3 Nitrocarb 15-round 9mm magazine equipped with a pre-installed anodized Shield Arms +2 extension. The innovative easy access floor plate design enables quick access to the spring and follower without detaching the extension from the magazine body. Backed by a 100% lifetime warranty and the Shield Arms Spring for Life guarantee. The innovative floorplate design allows for easy access, enabling you to service or clean the magazine body without needing to remove the extension The extension body features index cuts designed to enhance grip for a smoother draw from the magazine pouch Crafted from high-quality billet 6061 aluminum for enhanced strength and durability Constructed with a type II anodized finish Increases the capacity by 2-round for the Shield Arms S15 Gen 3 Nitrocarb magazine Includes an 11 coil plus power spring Crafted with pride in the USA Compatible with most aftermarket flared mag wells Covered by a lifetime warranty for long-lasting reliability