Poland was one of the states which manufactured the Soviet PPS-43 submachine gun under license, but they decided to make a change to is in 1952. Where the original PPS-43 used a top-folding metal stock, the Poles decided to instead add a fixed wooden buttstock. This made the gun substantially more comfortable to shoot, and also less compact to transport. Was the tradeoff worthwhile? Let's see how it shoots...

Thanks to Marstar for letting me examine and shoot their PPS-43/52!