Product Description The ProMag Industries Ruger Max-9 9mm 20-Round Blue Steel Magazine (RUG-A50) is a high-capacity aftermarket magazine engineered for the Ruger Max-9 9mm pistol. Manufactured in the USA, this magazine is built from heat-treated steel with a durable black oxide (blued) finish, providing exceptional corrosion resistance and long-term reliability. The magazine spring is precision-wound from heat-treated chrome silicon wire, ensuring consistent and dependable feeding with every round. An injection-molded follower further enhances smooth, reliable ammunition presentation. ProMag backs every magazine with a lifetime guarantee against manufacturer&';s defects, making this a trusted upgrade for extended capacity and dependable performance. Product Highlights 20-round capacity provides extended shooting sessions for the Ruger Max-9 9mm pistol Heat-treated steel body with black oxide (blued) finish for superior durability and corrosion resistance Precision-wound chrome silicon wire spring delivers reliable, consistent ammunition feeding Injection-molded follower ensures smooth and reliable round presentation Made in the USA and backed by a lifetime guarantee against manufacturer&';s defects Specs Brand: ProMag Industries MPN: RUG-A50 UPC: 708279017049 Caliber: 9mm Capacity: 20 Rounds Compatible Firearm: Ruger Max-9 Material: Heat-Treated Steel Finish: Black Oxide (Blued) Follower: Injection Molded Spring Material: Heat-Treated Chrome Silicon Wire Country of Manufacture: USA Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.