You need to specify an era or conflict. There have been many changes in the standard armaments of the US Military during its military history, and it's simply not feasible to compile a list of all weapons used throughout the existence of the US.
Guns
Atomic Bombs
use it only on snotfaced Americans
bows and arrows, spears.
coulp sticks and tomahocks
Weapons that were used by Native Americans include tomahawks, hatchets, and clubs. They also used bows, arrows, knives, and spears.
Native Americans used the mighty buffalo when they needed food, shelter, and bone tools and weapons.
Spear.
Most of the Native Americans whole civilization revolved around the mighty buffalo because it could provide food, shelter, and bone tools and weapons.
they used the banglores , m1 Grand ,BAR , Thompson sub machine gun , PSH
Well weapons or armies because weapons are muskets and cannons and armies are french and spanish
Find no, built yes.