This black oxide alloy steel, 15-round, 9mm Luger Genuine Ruger® Factory Magazine is compatible with the Security-9® pistol and the PC Carbine™ with the SR9®/Security-9® Magazine Well Insert installed. This magazine comes with a flush-fit floor plate installed. It is not compatible with SR9® or SR9c® pistols. Not recommended for use with the Security-9 Compact pistol without the use of the Security-9 Compact Magazine Adapter (#90668). This Genuine Ruger® Factory Accessory is made in the USA.