SIG SAUER MPX 9mm 20-Round Magazine (Gen 2)- Polymer Black

This replacement part is a factory original from Sig Sauer. Factory replacement parts are manufactured to the exact same specifications and tolerances and use the same manufacturing materials as the original parts which guarantees excellent fit and reliable operation.

This is the Gen 2 magazine for guns with a -KM part number which has a Keymod rail. These have an FDE follower. Please check the original magazine that shipped with your MPX. If it has a FDE follower then this is the magazine you need. If it has a black follower you need a GEN 1 magazine. We cannot guarantee 100% reliability when using these magazines in the “Gen 1” MPX.

Technical Information: