Introducing the latest innovation from ProMag, where traditional craftsmanship meets modern technology. This magazine combines heat-treated high carbon steel, expertly stamped and welded, with advanced precision injection molding of Mil-Spec polymer compounds. The result is a magazine that delivers exceptional reliability and durability. Constructed from DuPont Zytel-based polymer and heat-treated steel, featuring a sleek black oxide finish, this magazine boasts a robust steel upper and a lightweight polymer lower housing. Each ProMag magazine is backed by a lifetime guarantee against manufacturer's defects, ensuring you can trust your magazine to perform flawlessly, shot after shot. Choose ProMag for quality you can count on in any situation.