I see real ones all the time, plus plenty of post -war MP-40 pouches and mags are abound. why mess with GB. most of that stuff on there is junk and overpriced
those pouches look like post war czech made using original parts or its a repro using similar if not outright faked parts with standard mattress cover material I would say it looks fake
I sometimes wonder, if all those MP-44 canvas pouches are not weathered pouches, but outright Czech post war surplus