ProMag DRMA21 50-Round 9mm Drum Magazine for Sig MPX

The ProMag DRMA21 is a 50-round drum magazine designed to fit the Sig Sauer MPX. It is chambered for 9mm Luger and uses a black polymer magazine body with a heat-treated stamped steel upper housing.

This magazine is intended as a replacement or spare magazine for compatible Sig MPX firearms. It is made in the USA and incorporates an injection-molded follower and heat-treated stainless steel wire.

Key Specifications

• The magazine is compatible with the Sig Sauer MPX.
• The chambering is 9mm Luger.
• The magazine capacity is 50 rounds.
• The magazine body is made from black polymer.
• The upper magazine housing uses heat-treated stamped steel with a black oxide finish.
• The follower is injection molded.
• The magazine uses heat-treated stainless steel wire.
• The listed dimensions are 3.15 x 6.75 x 14.55 inches.
• The magazine is made in the USA.
• Direct shipment restrictions are listed for California, Rhode Island, Washington, Illinois, and Oregon.

With its high-capacity drum format, polymer construction, and compatibility with the Sig MPX platform, the ProMag DRMA21 provides a practical option for range equipment and as a spare magazine where permitted by applicable law.