@burns92331 It was originally called the M1928. The M1A1 refers to the the version the US Army used during WWII with a host of modifications (different foregrip, new rear sights, modified bolt, etc.).
@RobBallinger Thank you for spelling it out to some of the armchair generals here that are too thick and have their heads up their asses too see how well this demonstrates the power of a simple design and teamwork.
It'd be nice if it was real.