Hi,
I had a very bad experience with a Mustang bought new late last year.
The slide was of such soft steel that the slide stop wore off the 90 degree corner of the slide stop cut on the slide. Returned it, Colt sent it back with a new slide which did the same thing. Colt has promised me a refund.
Failure to lock back is a chronic problem on these guns, I have heard, although I have two Gov. .380's which have no problems. They are in nickel and stainless, however.
Be careful to ensure that the slide locks back securely if you buy a Mustang, and I recommend getting one in stainless.
Good luck.
Ledbetter
[This message has been edited by Ledbetter (edited June 02, 2000).]