Does the Hungarian have the magazine safety? I handled one that didn't and was wondering if it was all of them. Argentina has 17 round mags, for what it's worth. I think the Hungarian guns started out on Nazi-captured Belgian tooling which was move to Hungary to avoid Allied bombers.
They all came with the magazine safety as far as I know, The one on mine was removed post purchase, intentionally, ( wow, am I going to hear blowback on that).
My Hungarian HP had the magazine safety which I immediately removed. My BHP is too valuable to shoot, but I will if my life was on the line.