You'll hear mixed reviews on the CSMC 21's, per the above. I've owned 3 original 21's, all early double trigger/extractor guns. One remained in its original factory condition. The other two had had various modifications: restocked, custom engraving, etc. I didn't have any problems with any of the 3.

That being said, I saw problems with original 21's at the old UP SxS shoot, including one on which the stock basically self-destructed when it doubled during the flurry event. No gun is totally bulletproof, I guess.