O se faaauauina o lenei parakalafa - Ina ua maeʻa ona manuia i suʻega, na aloaia ai loa e le ʻautau le Colt pistol i le aso 29 o Mati, 1911, ina ua faaigoaina o le Model of 1911, na suia mulimuli ane i le Model 1911, i le 1917, ona suia ai lea i le M1911, i le ogatotonu o le 1920s. Na amata ona gaosia e le Faatonu o le Civilian Marksmanship le fana M1911 mo sui o le National Rifle Association ia Aukuso 1912. E tusa ma le 100 pulufana na faailogaina "N.R.A". i lalo ifo o le numera o le numera na gaosia i Springfield Armory ma Colt. O le M1911 na aloaia aloaia e le US Navy ma le Marine Corps i le 1913. O le.45 ACP "Model of 1911 U.S. Army" na faʻaaogaina e le US Army Cavalry troops ma fitafita fitafita i le taimi o le United States' Punitive Expedition
I Mekisikō e faasagatau iā Pancho Villa i le 1916.