The extreme reliability of Kalashnikov USA's KP-9 and KR-9 rifles and pistols is largely due to the design of the magazine. They take much of their design from the curved, double feed magazines used by the WWII-era PPSH sub machineguns, but feature modern improvements such as a durable polymer/steel construction as well as an enhanced feed ramp for reliable jacketed hollow point cartridges. Includes (2) 30-round magazines.