Norinco Parts Identification

[bobsonofbob]

I am seeing some lower priced parts available for AR15's around here. Are there any definitive ways of determining if the parts are built by Norinco? Bolt carriers and some A2 uppers are in question. US, European and Canadian markings are all well known, where can one find information on the 'clone' black rifles made offshore?
Thanks in advance for your response efforts.
bsob

 

[enefgee]

First gen Norc uppers have a number dot matrixed under the forward assist and the bcg (which is FA) is scratch marked to the rifle. Also the Norc upper is relief cut at the rear. Somewhere on M4C there are a series of pictures I took when I first got mine. The lower parts just look icky (function yes, look good no - Norc's new slogan)