By the time the M1911A1 was developed, Colt had already emerged as a household name in the sidearm industry. Guns like the Colt Peacemaker had already earned a reputation in the hands of the lawmen and bandits of the old west. Unlike its predecessors however the M1911A1 had a self-loading mechanism which used the recoil of the previous shoot to load the next round in the chamber. This marked a great leap forwards from the revolver type side arms that had been common place in the day.
Noticing a lack of effectiveness in combat of some of the smaller callibre pistols of the day the Colt M1911A1 was chambered with the brand new 0.45 ACP round, which had been shown an improvement in stopping power from earlier rounds. This was to prove a godsend to many of the allied soldiers equiped with this weapon throughout World War 2, as it was capable of stopping a charging enemy in their tracks. This fact would be put to the ultimate test in the fierce battles of the pacific theatre, where the weapons' effectiveness in close combat and against banzai charges became apparent.
By the wars end the M1911A1 had truely lived up to the saying that "God Made men, but Colonel Colt Made Them Equal".