10-round, 9mm Luger, black oxide alloy steel The Security-9® pistol is compatible with a genuine Ruger® Factory Magazine. It is also compatible with the PC Carbine™ and PC Charger™ with the SR9/S9 magazine well insert installed. It cannot be used with the SR9® or SR9c® handguns. It's not a good idea to utilise the Security-9® Compact pistol with it. This Ruger® Factory Accessory is made in the United States.
