ProMag Sig Sauer P320 9mm 50-Round Drum Magazine
High-capacity 50-round drum magazine for Sig Sauer P320 pistols. Durable black polymer construction with heat-treated steel components. Lifetime manufacturer's warranty. Made in USA.
Fits: Sig Sauer P320
ProMag P320 50-Round Drum Magazine
This high-capacity drum magazine is purpose-built for the Sig Sauer P320 platform, offering shooters extended firepower without frequent reloads.
Construction & Durability
ProMag combines traditional metalworking with modern polymer engineering:
- Steel components are heat-treated high carbon steel, precision-welded for reliability
- Polymer body uses mil-spec injection-molded compounds for durability and lightweight handling
- Black finish resists corrosion and blends with tactical setups
Performance Features
- 50-round capacity significantly extends shooting sessions
- Reliable feeding engineered for consistent performance
- Smooth operation despite high round count
- Made in USA with quality oversight
Warranty
Every ProMag magazine is backed by a lifetime guarantee against manufacturer's defects, reflecting confidence in construction quality.
Whether you're training, competing, or preparing for home defense, this drum magazine delivers the extended capacity serious shooters demand.
Features
- drum housing constructed of a proprietary dupont zytel based polymer
- magazine upper tower has full length steel internal insert stamped and welded like the factory magazine
- injection molded magazine follower
- magazine spring formed from heat treated stainless steel
- made in usa
