Promag Sig P320 9mm 50rd Drum

The ProMag Sig P320 9mm 50rd Drum magazine is purpose-built for operators and shooters who demand extended firepower without frequent reloads. Designed for the Sig Sauer P320 platform, this 50-round drum magazine eliminates the need to carry multiple standard-capacity magazines during training, competition, or tactical operations. Whether you're running carbine courses, conducting live-fire drills, or staging for range sessions, the 50-round capacity dramatically extends your engagement window and reduces transition time.

ProMag drums are manufactured in the USA using precision-engineered components that meet professional standards. The magazine features heat-treated chrome silicon wire springs wound to exact specifications, ensuring reliable feeding under sustained fire and adverse conditions. Each drum undergoes rigorous quality control throughout assembly, with multiple inspection checkpoints to verify feed reliability, follower geometry, and spring tension consistency. The robust construction tolerates the additional mechanical stress inherent to drum magazines while maintaining the same reliability demanded by law enforcement and military end-users.

This drum magazine is ideal for P320 owners running standard 9mm Luger ammunition in full-size or compact variants. The generous 50-round capacity excels in high-round-count training environments where magazine changes introduce unnecessary delays. Backed by ProMag's lifetime warranty against manufacturer defects, the drum provides peace of mind for serious shooters investing in extended-capacity backup systems. Weighing 1.75 lbs when loaded, this magazine remains portable enough for duty or competition carry while delivering the firepower advantage that separates well-prepared operators from casual shooters.