Colt Commander
This was Colt's Manufacturing Company's candidate in the U.S. government's post-World War II trials to find a lighter replacement for the M1911A1 that would be issued to officers. Requirements were issued in 1949 that the pistol had to not exceed 7 inches in length or weigh more than 25 ounces.
COLT COMMANDER (1950-1970) LIGHTWEIGHT COMMANDER (1970+)
Chambering: 9x19mm Parabellum, .45 ACP, .38 Super. Barrel Length: 4-inch or 4.25-inch. Overall Length: Weight: Finish: Blued Steel. Features: Aluminum Coltalloy (tm) frame.
COLT COMBAT COMMANDER (1970+)
Chambering: 9x19mm Parabellum, .45 ACP, .38 Super. Barrel Length: 4-inch or 4.25-inch. Overall Length: Weight: Finish: Stainless Steel. Features: Stainless Steel frame. Retrieved from "http://en.wikipedia.org/wiki/Colt_Combat_Commander"