COLT DETECTIVE SPECIAL USED

The Colt Detective Special is a double-action revolver, typically chambered in .38 Special, with a 2-inch or 3-inch barrel. It's a small, concealable handgun, designed to be an early example of what's now known as a "snubnose revolver". The Detective Special has a six-round cylinder and weighs approximately 1.3 pounds.
Here's a more detailed look at the specs:
Type: Revolver.
Caliber: .38 Special, .32 New Police (.32 S&W Long).
Weight: 1.3 lbs (0.59 kg).
Length: 6.75 in (17.1 cm).
Barrel Length: 2 in (5.1 cm), 3 in (7.6 cm).
Capacity: 6 rounds.
Action: Double-action (SA/DA).
Frame Material: Carbon steel.
Safety: Drop safety (some models).
Grips: Checkered American walnut, plastic, rubber.
Finish: Bright blue, bright nickel, satin electroless nickel (Coltguard).