Mystery Gun Update

1. I paid $385 for a new firearm, tax included.
2. It's in a caliber I already own.
3. I have at least one firearm of this make, but not this model.
4. I went back to the show to see if I could find one exactly like it. Fortunately for my finances, I was unsuccessful.

Good guesses so far:
SiG Mosquito
Uberti 1890 Police in .357
S&W .357 revolver

Any more guesses?

Where in the WORLD do you people find those sub-$400 SiGs?????