I made a phone call. To my grandad. He joined the corp in sept. 1939. He retired in 1972. According to him, in bootcamp he was trained with "the springfield". When he reported to his first ship, he carried the 1911. When he went to the infantry in july 1942 he was issued "the Garand". All I can say is, he would know what the Corp called it.
Hundreds of years from now, it will not matter what my bank account was, the sort of house I lived in, or the kind of car I drove... But the world may be different because I did something so bafflingly crazy that my ruins become a tourist attraction.