Yeah you’re gonna need that M70 safety. I would recommend getting one sooner than later, because those things a while back where pretty hard to find. I sold all my aks about 5 years ago, but when I had my M92UF I was lucky enough to have purchased the 92 stock and safety. I remember reading on AKfiles that it for the conversion to work it has to be same stock / safety (70 or 92) - not a mixture of the two.