No, the KSN-1177 is not a copy, it´s a genuine CTS part.
The copy of that would be MPT-177, and I haven´t tried that one.
There is some obvious differences between the KSN-1038 and the copy MPT-100 frame (see picture)
The copy doesn´t have the same quality to the material, and the horn is a bit longer.
Regards
Kim