SIG SAUER MAGAZINE MPX 9MM BLK 20RD

Description

Sig Sauer’s MPX magazine is built for shooters who run the MPX platform hard and need a factory-spec feeding solution that holds up across extended range sessions. The polymer body keeps weight down without sacrificing rigidity — the material resists deformation under the compression of a loaded stack, so the magazine retains its shape and dimensions over time rather than gradually losing the tight fit that reliable feeding depends on.

Where polymer alone tends to wear under the repeated impact of rounds cycling out of the feed lips, Sig addressed that by reinforcing those lips with metal. Feed lips govern the angle and timing at which each round presents itself to the chamber; when they flex or deform, feeding becomes inconsistent. Metal lips hold their geometry through sustained use, which matters most in high-round-count practice environments where a magazine is loaded and emptied repeatedly in a single session.

A high-visibility polymer follower lets you track remaining rounds without removing the magazine from the firearm — useful during drills where you want to stay aware of round count without breaking your position or workflow. The polymer base plate keeps handling straightforward and is built to the same dimensional standards as the rest of the magazine.

This magazine is compatible with all generations of the SIG MPX, so it works regardless of which variant you’re running. It ships in Sig’s matte black finish and is engineered and tested to Sig Sauer’s own factory tolerances — the same specification the firearms themselves are built around.

Shipping and availability: This item cannot be shipped directly to California, Rhode Island and Washington. It cannot be sold into Illinois and Oregon. Check your state and local requirements before ordering.