SIG SAUER P228/229 9mm 13 Round Pistol Magazine Black. This magazine has a slightly smaller diameter body which accommodates earlier 228S & 229s that the current 15-round magazine does not fit. Specifications for SIG SAUER P228/229 9mm 13 Round Pistol Magazine: Manufacturer: SIG SAUER Gun Make: SIG Sauer Gun Model: SIG Sauer P228 SIG Sauer P229 Caliber: 9mm Luger Magazine Capacity: 13 Round Color: Black Quantity: 1 Fabric/Material: Aluminum Package Contents: SIG SAUER P228/229 9mm 13 Round Pistol Magazine SIG SAUER Infinite Guarantee What firearm models does the manufacturer say SIG SAUER P228/229 9mm 13 Round Pistol Magazine is compatible with? The manufacturer says that SIG SAUER P228/229 9mm 13 Round Pistol Magazine is compatible with SIG Sauer P229 SIG Sauer P228SIG SAUER MAG-229-9-13: P228/229 9mm 13 Round Pistol Magazine Black