i have seen an IMI bayo .. and i own a south african bayo .. you will know if you have a IMI bayo by the 'button' on the frog holding the frog to bayo .. on the southafrican .. its a hole and loop ..
my south african was nicer than the IMI i had .. the IMI i saw had the grips painted black like in factory black in the model A and B recievers .. my south african bayo is parked .. i like mine just fine ..