ProMag magazines embody a blend of traditional craftsmanship and modern innovation. They are meticulously crafted using traditional methods like heat-treated high carbon steel stamping and welding, complemented by state-of-the-art precision injection molding with Mil-Spec polymer compounds. Backed by a lifetime guarantee against manufacturer's defects, ProMag ensures unwavering reliability. Introducing the ProMag drum magazine, constructed from robust DuPont Zytel-based polymer. Its upper tower features a full-length steel internal insert that is expertly stamped and welded to replicate the rugged construction found in factory magazines. Elevate your shooting experience with ProMag, where superior materials and meticulous design meet to deliver exceptional performance and durability.