Okay I give up. I tried searching for a comprehensive thread on their differences, but I cannot find one. I have read that they are different, but where/how? Again, I apologize if this question has been answerred before, but I cannot find it.
I have a couple of polytech's that have no markings at all except for the serial number. They are registered as polytech's because I bought them as polytech's. No m14/m305 markings....no made in china....nothing.