Colt Commander

Colt Commander
A MK IV .45 ACP Colt Combat Commander.
Type	Semi-automatic pistol
Place of origin	United States
Production history
Designed	1949
Produced	1950–present
Variants	Lightweight Commander Combat Commander Commander Gold Cup Colt Combat Elite Concealed Carry Officer's pistol
Specifications
Barrel length	4.25 in (107.95 mm)
Cartridge	9×19mm Parabellum .38 Super .45 ACP
Action	Short recoil operation
Feed system	box magazine 7-round or 8-round (.45 ACP) 9-round (9 mm and .38 Super)

The Colt Commander is a single-action, semi-automatic, magazine-fed, and recoil-operated handgun based on the John M. Browning–designed M1911. It was the first mass-produced American pistol with an aluminium alloy frame and the first Colt pistol to be chambered in 9mm Parabellum.^[1]

Colt made several variations of the Commander and offered it in .45 ACP and .38 Super chamberings. Other variants followed with different degrees of factory accurizing and materials.