ProMag magazines embody a meticulous blend of traditional craftsmanship, incorporating heat-treated high carbon steel stamping and welding, and advanced precision injection molding using Mil-Spec polymer compounds. Specifically tailored for Sig Sauer P365 pistols chambered in 9mm, these magazines are crafted from durable heat-treated steel and feature a resilient black oxide finish. Each ProMag magazine is accompanied by a lifetime guarantee against manufacturer's defects, ensuring unwavering reliability and performance for shooters who rely on consistent functionality in their firearms.