Would that be anything like;
M1 bayonet (as fitted to the M1 Garand)
M1 carbine
M1 chemical mine
M1 Combat Car (an early tank)
M1 Armored Car
M1 Garand
M1 helmet
M1 mortar
M1 rocket launcher (a bazooka variant)
M1 Thompson submachine gun
Mk 1 Underwater Defense Gun (an underwater pistol)
M1 Thompson carbine
57 mm Gun M1 (US designation for the British Ordnance QF 6-pounder)
90mm M1 Gun (one of a family of dual purpose guns)
120 mm M1 gun (an anti-aircraft gun)
240 mm howitzer M1
Benelli M1 semi-automatic shotgun
M1 flamethrower (WWII-era flamethrower)
8-in Howitzer M1 also known as the M115 Howitzer)
M1 Abrams
in any way shape or form?
Sometimes it amazes me that the US Army's logistics chain wasn't totally FUBAR!