The Colt MK IV Series 70 Government Model is a classic and iconic semi-automatic pistol, known for its reliability, historical significance, and use by military and law enforcement agencies. It is a part of Colt’s 1911 series, which has been in production since 1911 and remains one of the most popular and recognizable handguns in the world. The Series 70 Government Model is chambered in .45 ACP, one of the most powerful handgun calibers in regular use. The .45 ACP round is known for its stopping power, which made it a favorite for military, law enforcement, and self-defense purposes.