Oops. Just when I think I've got all info and full disclosure about an item somebody asks a question I should have expected.
Well, in my defense, it's hard to remember the weirdness of Colt.
For the record, this trigger group is sized for standard pins (.154in). It will not fit non-standard pins (Colt).
And yes, standard springs on this setup, as per Accuracy Speaks.
Benfur, in looks like it's yours if you want it. Let me know if you have any more questions. Also I've heard that the guys at AS are good about customer service; don't know if they'll be answering email over the holiday though.