Ares m4 Buffer tube swap?
 

I have an Ares m4 and I'm looking to change my stock to a magpul CTR stock but I know the Ares uses a real steel commercial-spec buffer tube which can be a problem in some cases I've heard of. Does anyone out there know if I could just replace the buffer tube with a standard airsoft spec tube or not? Would the threading not fit?

Replace it with a real receiver extension.