ProMag DRMA73 50rd Drum Magazine for Sig P228 – 9mm

The ProMag DRMA73 is a 50-round drum magazine designed to fit the Sig Sauer P228 chambered for 9mm Luger. The magazine pairs a DuPont Zytel-based polymer body with a blue steel upper tower and a heat-treated stainless-steel spring for reliable feeding in range and training environments. Made in the USA, the DRMA73 is intended as a durable, high-capacity magazine option for shooters who require extended capacity.

Key Specifications

• The magazine capacity is 50 rounds.
• Compatible with Sig Sauer P228 pistols.
• The cartridge specification is 9mm Luger (9x19, 9mm Parabellum).
• The magazine body material is polymer (DuPont Zytel-based).
• The upper magazine tower is constructed of blue steel.
• The follower is injection-molded.
• The magazine spring is made from heat-treated stainless steel.
• The exterior finish is black.
• Published product dimensions are 3.30 X 6.90 X 14.55.
• Manufacturer origin is listed as Made in USA.

Built for prolonged range sessions and training, the DRMA73 provides extended capacity while using durable materials chosen for longevity and dependable operation. Its combination of a polymer body and steel tower balances weight and strength for practical use in supported shooting applications and controlled environments where extended capacity is appropriate.