Product Description The ProMag FNX-45 extended magazine is built to deliver dependable feeding and extra on-hand capacity for FN FNX-45 pistols. Featuring rugged steel construction with a blued finish, this magazine is designed for range time, training, and everyday use. ProMag magazines are manufactured and assembled in the USA, and the spring is precision-wound from heat-treated chrome silicon wire for consistent performance. Product Highlights 20-round extended capacity magazine for FN FNX-45 pistols in .45 ACP Durable steel body with blued finish for long-lasting use Precision-wound, heat-treated chrome silicon wire spring for reliable feeding Easy-loading, rugged construction designed for repeated range sessions Made in the USA and backed by ProMag&&';;s lifetime guarantee against manufacturer defects Specs Brand: ProMag Industries Product Type: Pistol magazine Firearm Fit: FN FNX-45 Caliber: .45 ACP Capacity: 20 rounds Material: Steel construction Spring Material: Heat-treated chrome silicon wire Finish/Color: Blued (Blue) Country of Manufacture: USA Manufacturer Part Number: FNH-A8 UPC: 708279014970 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.