ProMag 40rds .223 Remington/5.56x45mm Magazine - Black High-Capacity - RUG-A46

ProMag magazines integrate a blend of traditional craftsmanship and cutting-edge manufacturing processes. They combine traditional stamping and welding techniques using heat-treated high carbon steel with modern precision injection molding using Mil-Spec polymer compounds. Every ProMag magazine is backed by a lifetime guarantee against manufacturer's defects, ensuring unwavering reliability. The ProMag drum magazine exemplifies this meticulous construction. Crafted from DuPont Zytel-based polymer, its upper tower features a full-length steel internal insert that is meticulously stamped and welded to replicate the robust design of factory magazines. This construction guarantees durability and consistent performance, meeting the highest standards of shooters and enthusiasts alike.