The Colt Bisley Model is a type of revolver that was produced by the Colt's Manufacturing Company in the late 19th and early 20th centuries. The Colt Bisley Flat Top Target Revolver was created to be a more target-oriented version of the Colt SAA revolver. History of the Bisley Revolver The Colt Bisley was introduced in 1894 and was produced until