CAI has a reputation of being drunken monkeys smashing things with a wrench. To a great extent... they deserve it. They put out some nasty rifles. But if you take the time to select a good one it's well worth the money. You are taking a risk though. I suggest you visit
http://www.cetmerifles.com/forum/index.php . An excellent resource. Be sure to read the primers, especially about parts count. A word of warning: if you don't use surplus .308/7.62 NATO then have one of
these handy.
Accuracy: excellent, when properly built(You'll hear this a lot.
). Mine drives tacks, though I don't. 1 MOA isn't out of the question by any means.
Mags: 20 rounders for the most part. I dislike the steel CETME magazines, they are rather heavy and clunky. And in my rifle they are very loose. They are durable. G3 aluminum mags are dirt cheap, light, and very durable. There are some 30 rounders but, from what I hear, the springs suck and the steel isn't of the best quality. I would avoid.
Price: a good price for a "Black Widow" CETME, with an el cheapo plastic stock, is $350-400. Wood runs a little more, if I remember correctly. I snagged mine for $389, including fees and taxes. A G3 clone will run $500 or so. The G3 clone has a better rear sight(the front sight of the CETME is better, I think), "normal" fire controls(down fire, up safe), and parts are more available. The plastic on the "Black Widow" sucks something awful, in my opinion. I'd throw a set of G3 furniture on. I have meaty hands, so a wide forearm would be great too. Watch your parts count though.