ProMag 55rds 5.7x28mm, Flat Dark Earth

The ProMag magazine bodies and followers are injection molded from durable, lightweight polymer, while the springs are precision wound from heat-treated chrome silicon wire. This ensures exceptional quality, consistency, durability and reliability. Durable and reliable 55-round drum magazine Precisely engineered to fit the FN 5.7x28mm AR-style carbine, ensuring seamless integration and optimal performance, not compatible with the FN Five-seveN USG 5.7x28mm pistol Engineered with a rugged DuPont Zytel polymer blend, ensuring superior structural integrity, chemical resistance and long-lasting performance Durable blue steel upper magazine tower for enhanced strength and reliability Precision-molded for smooth, reliable feeding, reducing friction and ensuring consistent round stacking The magazine spring is crafted from heat-treated stainless steel for enhanced durability and performance Proudly made in the USA for superior quality and craftsmanship