The FNC1 was in fact the FN FAL. It was more close to the FN FAL than the British L1A1, which had several modifications. If you go to the Fabrique Nationale website (or any of the websites devoted to FN weapons in the US) you should get a good picture of the C1.

By the way, the C2 looked alot like the C1, but it had a heavier barrel and a tripod. It was the section support weapon before the C9.

Cheers

But I'm not really an expert on this subject.