Black oxide alloy steel, 15-round, 9mm Luger Genuine Ruger(R) Factory Magazine is compatible with the Security-9(R) pistol. It is also compatible with the PC Carbine(TM) and PC Charger(TM) with the SR9/S9 magazine well insert installed. It is not compatible with SR9(R) or SR9c(R) pistols. Not recommended for use with the Security-9 Compact pistol without the use of the Security-9 Compact Magazine Adapter (#90668). | Ruger Magazine 15 Round Security 9