ProMag Sig Sauer P229 .40 SW 50 Round Drum Black Polymer Mag

The ProMag Sig Sauer P229 .40 SW 50 Round Drum Black Polymer Mag is a 50 round drum magazine that fits the Sig Sauer P229 .40 Smith and Wesson. It features an injection molded magazine follower and the magazine spring is formed from heat treated chrome silicon wire. ProMag's magazines are proudly made in the USA.