Sig Sauer’s P229-1 magazine is the correct factory replacement magazine for updated P229 and E2 pistols chambered in 9mm. The Sig Sauer P229-1 9mm replacement magazine offers a full 15-round capacity with a low-profile black polymer base plate that gives a flush fit to the bottom of the magwell. The Sig Sauer P229-1 9mm factory replacement magazine has a steel mag body with a matte black finish and witness holes numbered 3 through 15 on the rear to indicate round count. The side of the magazine is stamped SIG SAUER P229-1 for instant visual recognition that these mags should not be used in older P229 models.