If you are looking for a magazine for your Smith and Wesson Model 5900 Series 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 S&W 5900 Series, 910, 915, 659 pistols in 9mm.