if you haven't fully read my posts. i have fixed the problems with their part.
it is working fine now.
be advised your going to make a permanent alteration to your SAGIA.
and if it don't turn out--it is YOYO for you.
it would not be a problem to add this converter to a 223 AK build.
converting one that is running ak mags is IFFY with this converter.
grinding on locking lugs is never a good idea even if it works. on a new build the converter could have been moved back a few MM and the lugs could have been left unmolested.
i got mine to run, after much more trouble and risk than it is worth. i wouldn't do this again on a built rifle.