ProMag SIG Sauer P320 9mm 50-Round Drum Magazine

The ProMag drum magazine provides high-capacity feeding for the Sig Sauer P320 9mm pistol. Designed with a polymer drum body and a blue steel upper magazine tower, it offers an alternative magazine for extended range sessions, training, and competition use. Components include an injection-molded follower and a spring formed from heat-treated stainless steel. This magazine is manufactured in the USA.

Key Specifications

• Capacity is 50 rounds for extended shooting sessions.
• Caliber is 9mm, formatted for the specified platform.
• Intended fit is Sig P320 pistols.
• Body material is a proprietary DuPont Zytel based polymer.
• Upper magazine tower is constructed from blue steel.
• Follower is injection molded for reliable feeding.
• Magazine spring is formed from heat treated stainless steel.
• Finish/color is matte black.
• Product type is magazine (drum).
• Manufacture origin is Made in USA.

This drum magazine delivers dependable high-capacity service without unnecessary embellishment. Its combination of polymer and steel components is engineered for sustained use during extended range sessions and competitive formats. For shooters who require greater capacity while maintaining reliable feeding, this ProMag drum magazine is a straightforward option built to the specifications listed above.