Possible it's for a large pin Colt?Yes, FCG is out of spec. It allows the safety to be on without the hammer cocked blocking it and thusly the carrier. This is due in part of either an out is spec safety tang or the fact that the trigger/hammer pin holes are way too large when I measured them...maybe both.
I emailed JARD and have an RA for the FCG. Have yet to have a chance to mail it back for a replacement. Just sitting on my bench in an envelope ready to go out. :-/
I promised alleycat a write up in this FCG once the new one comes back. I will explain the problem more in depth then. First impression of the trigger is not looking good though...