Scoops asked about a Colt Cobra. The two followups refer to the King Cobra. These are very different revolvers. The Cobra is essentially a lightweight Detective Special; a D-frame, alloy revolver, most typically found with a 2-inch barrel (though 3" and IIRC 4" guns are also out there). The King Cobra was Colt's answer to the S&W 686 and the Ruger GP-100, being a medium-large frame .357 Magnum.
So scoops, which is it?