Triggers
Howdy!
Your best bet would either be a gun show or a pistolsmith who has a pile of'em in a take-off parts box. One point to be aware of is that while a Colt for Colt swap is usually a drop-in affair...the Series 80 firing pin safety system
can pose a problem sometimes.
Due to spec differences and tolerance stacking, the trigger may not provide the correct timing of the levers in the frame needed to unlock the firing pin correctly. This can produce anything from light damage to the plunger in the slide to misfires. HAve it checked and corrected by a pistolsmith who understands how the Series 80 system works.
If complete deactivation of the Series 80 system is an option, the trigger will probably drop in and work just fine. I advise against deactivating the system on a carry or duty pistol for liability reasons. I deactivate all my personal Series 80 Colts' FP safeties when the gun is intended for range use. The system is easy to remove and easy to reinstall, and doesn't require permanent alteration of the gun.
Luck!
Tuner