If you are looking for a magazine for your Sig Sauer P228 Pistol, choose the magazine manufacturer that is the most trusted in the industry. All Mec-Gar magazines are made in Italy with the most sophisticated technologies and best materials. Since 1965 Mec-Gar has been a world leader in the production of magazines for the largest firearm manufacturers and militaries in the world. Fits Sig Sauer P229 in 40 S&W.Features :Heat TreatedPrecision StampedStrengthened Feed Lips