The Generation 2 SM9 MPX Mag for the SIG SAUER MPX by THRiL features stainless steel feed-lips and superior ergonomics, with an improved follower design and a stability rib on the rear spine. The refined design of this Generation 2 SM9 MPX Mag enhances reliability across a broad range of shooting conditions and ammunitions for the SIG SAUER MPX and KM models.