Depending on EXACTLY what you have, 50-1500 USD
The
1 dollar
For which pistol??
$50-$125.
25-75 USD
50-1000 usd
50 or so
100-1000 or so depending on specifics
$50-$75. Low dollar German revolver.
About $25.
100-400 or so
$0 and up. Impossible to answer without knowing manufacturer and model.