Both are no longer in production, but they're still pretty widely available.
The Colt Pony mostly differs from the Colt Mustang by being a double action only semi-auto, whereas the Mustang has the ability to cock the hammer.
Both basically require about $300 worth of work to make them good for concealed carry - whoever does your adjustments, make sure they include at least a few extra recoil springs, you should replace them after 500 or so rounds.
They're ok guns; I was never a fan of them and wasn't all that disapointed to see them go.
>Both basically require about $300 worth of work to make >good for concealed carry
What are you talking about?? 1 Wolff spring and a replacement full length guide rod and I was done (about $30 total).
>make sure they include at least a few extra recoil springs, >you should replace them after 500 or so rounds.
uh...1 Wolff spring several thousand rounds later still functions flawlessly.
For the naysayers a shot from my 380 is worth more than my P-220 left at home. I wouldn't stand in front of one. :)
Seriously though, I love mine.