The newer CAI L1's seem to have some sort of inch type rec but metric mags seem to fit better? Someone above mentioned the 15 plus pound trigger - pretty standard FAL. A bit of cleaning on the sear notches with a stone helps but BE CAREFUL, FAL triggers can be touchy, easy to take off too much. A set of Wolff springs is not a bad thing but make sure to use a SET, not just one or two springs. FAL's will never have a match trigger feel but they can be cleaned up and the triggers that Century uses are pretty notchy. You can go the big bucks way and get a complete DSA trigger set for about 90 bones. The only other major operational problem I've seen with some Centurys is the 2 piece gas piston but some of the newer ones are comming with a one piece piston. Some simple adjusting and tuning makes the Century rifles really good shooters and the earlier ones did have an Imbel reciever. I'm not sure who's making their new recievers but I get the feeling it's Hesse.
Max
Max