I don't think anyone can make a decision without better pics, close ups.
The leather oiler pouch is disturbingly reminiscent of a Yugo post war SKS pouch?
They are not German or WW2.
Had good advice? Saved money? Why not become a Gold Club Member, just hit the green "Join WRF Club" tab at the top of the page and help support the forum!
Me thinks they are for the Swedish K SMG.
WW2 German ones hold three magazines per pouch, with the exception of the rarer six mag pouch.
Not four magazines.
I don't know the origin of the pouch shown here but I know where it didn't come from, Germany during WW2.