In the latest American Rifleman magazine (December 2021), there is an article on the Poly Technologies M-14/S. According to the article, this gun was imported from China from 1988-1994. This gun was a knock-off or a reverse-engineered gun copied from the American version.
Here is the question that I have about this gun: I remember when this gun was being imported and the reviews were generally good. However, suddenly a few companies started saying that the metal in some of the critical areas of this gun was "soft" and that certain areas needed to be heat treated to avoid wear. So my question on this post is this: Were there certain areas of this gun that needed to be heat treated or were these companies just advertising this to bring is some business on something that really wasn't needed?
My interest is this would be obvious.
Here is the question that I have about this gun: I remember when this gun was being imported and the reviews were generally good. However, suddenly a few companies started saying that the metal in some of the critical areas of this gun was "soft" and that certain areas needed to be heat treated to avoid wear. So my question on this post is this: Were there certain areas of this gun that needed to be heat treated or were these companies just advertising this to bring is some business on something that really wasn't needed?
My interest is this would be obvious.