Product Description The ProMag Industries COL-A5 is an extended 15-round magazine designed to fit Colt 1911 Government Model pistols chambered in .45 ACP. Built with a heat-treated steel body and a blued/black oxide finish, it&&';;s engineered for durability and consistent feeding. Inside, a precision-wound, heat-treated chrome silicon wire spring and an injection-molded follower help maintain reliable performance. Made and assembled in the USA, ProMag magazines are backed by a lifetime guarantee against manufacturer&&';;s defects. Product Highlights Extended 15-round capacity magazine for Colt 1911 Government Model .45 ACP pistols Heat-treated steel magazine body with blued/black oxide finish for rugged durability Heat-treated chrome silicon wire spring for long-lasting tension and reliability Injection-molded magazine follower for smooth, consistent feeding Made and assembled in the USA and backed by ProMag&&';;s lifetime guarantee against manufacturer defects Specs Brand: ProMag Industries Manufacturer Part Number: COL-A5 UPC: 708279006883 Firearm Compatibility: Colt 1911 Government Model Caliber: .45 ACP Capacity: 15 rounds Magazine Body Material: Heat-treated steel Finish/Color: Blue steel / black oxide Follower: Injection-molded (polymer) Spring: 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.