I never understood why Colt discontinued the Mustang line for a few years but am glad they brought it back. Before the R9, and before the G380 that preceded the R9, this was my EDC (with Sambar Stag grips rather than these Ivories I was able to purchase from "Yankee"). With its single action and some SM&A "magic," this stainless-steel model (circa 1995) is surprisingly accurate for its size.
(http://i2.photobucket.com/albums/y30/RichardS/coltmustangwithivorygrips.jpg)