The Rock Island OEMP164015B 1911 Magazine is an essential accessory for firearm enthusiasts who prioritize reliability and performance. Crafted by Armscor, this blued metal magazine is specifically designed for the Rock Island Ultra Full Size High Capacity pistol, offering a substantial 16-round capacity that accommodates both 40 S&W and 10mm calibers. Its robust construction ensures seamless feeding and optimal performance, making it ideal for both range practice and competitive shooting environments. The sleek blued finish not only enhances durability but also adds a professional touch to your firearm's aesthetics. Engineered for precision, this ACT-MAG model stands out for its attention to detail, ensuring longevity and consistent performance under various conditions. Whether you are using it as a 40 S&W magazine or a 10mm magazine, the Rock Island OEMP164015B delivers exceptional value and dependability, making it a must-have for any serious firearm collector or enthusiast looking to enhance their shooting experience with a reliable, high-capacity option.