Product Description The ProMag Ruger Mini-14 magazine (RUG-A1) is a rugged, aftermarket rifle magazine designed for reliable feeding with Ruger Mini-14 rifles chambered in .223 Remington / 5.56x45mm. Built with a durable steel body and a heat-treated chrome-silicon wire spring, it is engineered for consistent performance and long service life. ProMag magazines are manufactured and assembled in the USA and are backed by a lifetime guarantee against manufacturer&&';;s defects. Product Highlights 20-round capacity magazine for Ruger Mini-14 rifles in .223 Remington / 5.56x45mm NATO Steel magazine body with blued finish for durable field use Heat-treated chrome-silicon wire spring for dependable, consistent feeding Easy-loading design with rugged construction for range, training, and hunting Made and assembled in the USA; backed by ProMag lifetime guarantee (manufacturer defects) Specs Brand: ProMag Industries Manufacturer Part Number: RUG-A1 UPC: 708279006371 Firearm Fit: Ruger Mini-14 Caliber Compatibility: .223 Remington / 5.56x45mm NATO Capacity: 20 rounds Body Material: Steel Spring Material: Heat-treated chrome-silicon wire Follower Material: Polymer (DuPont Zytel-based) Finish: Blued Country of Manufacture: USA Warranty: Lifetime guarantee against manufacturer&&';;s defects 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.