I'm not impressed with what is being stated as the differences between Colt and WW.
Buffer tube? ...along with it's unstaked castle nut? (..and that allows you to change the buffer tube to whatever you like)
Front sight post. Not sure what the differing sight posts imply (in what way does it affect the capacity/function of the rifle?)
I was expecting to hear things like:
WW uses lower quality metal/material in the barrel.... or BCG.
WW uses a finish that results in quicker rust / corrosion
WW machining results in poor fit between parts or sections
WW uses parts that will fail earlier than a Colt.
THAT, to my thinking, is what would distinguish a high quality rifle from a lower quality rifle (or rifles with a 30%+ difference in price)