All I can find is : Colt Commando Special DA Revolver......295.00
Caliber:38 Special.6 shot:2"bbl. 6.88inches overall.Weight 21.5 oz.Fixed sights lower luster blued finish. Made from 1982-86.
This came out of a Gun Traders Guide which is a few years old.Sounds to me it was a variation of the Dectective Spl.The Viper was the same gun but toted a 3:bbl if I remember correctly.
Ruger Redhawk