The receiver is a U-section stamped from 1.5 mm sheet steel and assembled by rivetings and spot weldings. The receiver has double walls made from two 1.5 mm plates welded one upon another. The receiver top cover is stamped from sheet steel and hinged at front to the receiver and locked at the back with a spring loaded latch. The ejector is similar to the AK's and riveted inside the receiver. The PK ejects empty cases through the ejection port located at left side on receiver. The ejection port has a spring-loaded dust cover. With proper gas selector setting, the ejection cycle is not as violent as the AK cycle and the PK won't damage ejected cases. The PK expels empty cases straight to left at a distance of about 1 m.