Since IOM have changed SVT-40 bolt colour to more realistic white (thanks for that) I though that same thing could be done for both PPSh-41 and PPS-42 since both these guns and in fact while bolt in real life.
both models have bolt. RO1 PPSh was incorrect, it fired from closed bolt so you can see it when weapon is not shooting. RO2 has correct PPSh, it fires from open bolt and its usually in open position. edit: fixed my mistake " correct PPSh fires from closed bolt "