While you are on the site, in your browser find and click "Add to Home Screen" A CGN beaver app icon will then be created to your phone that is directly link to the site.
Note: This feature may not be available in some browsers.
Usually the question is for someone looking for M14 parts to swap onto their Chinese receiver. For $400 you can get a Norinco rifle almost anywhere. The latest import batches seem to be closest to USGI specification, but nothing is perfect.
I would buy a complete Norinco and stip and sell the extra parts.
Ther are a couple north american companies making receivers but i can't remember the name of them. The receiver would be more than the entire Norinco so I would think the norinco is the way to go.