Product Description The ProMag ENF04 is a replacement or spare detachable rifle magazine designed to fit the Enfield #4 MkI chambered in .303 British. Built for dependable feeding and long service life, it features a heat-treated steel body with a blued finish, an injection-molded polymer follower, and a durable chrome-silicon wire spring. Made in the USA, it&&';;s an ideal option for keeping an extra magazine on hand for the range or as a backup. Product Highlights 10-round detachable magazine for Enfield #4 MkI rifles chambered in .303 British Heat-treated steel magazine body with blued finish for strength and corrosion resistance Injection-molded polymer follower engineered for reliable feeding Chrome-silicon wire spring helps maintain consistent tension and function Made in the USA (great for replacement, spare, or range use) Specs Brand Name: ProMag Manufacturer Part Number: ENF04 UPC: 708279004216 Type: Rifle magazine Caliber: .303 British Capacity: 10 rounds Compatibility: Enfield #4 MkI Body Material: Heat-treated steel Finish: Blued Follower Material: Injection-molded polymer (DuPont Zytel polymer per supplementary data) Spring Material: 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.