Here is the list of American's cool weapons, click on them to see the pic and know more bout' them.
Primary weapons[]
Sub machine guns(SMG)[]
Thompson(M1928)
M3 .45(Grease gun)
M50 Reising
Rifles(Carbines...)[]
M1 Garrand
M1 Carbine(Assualt rifle)
M1903 Springfield
Johnson M1941
M1918 Browning Automatic Rifle
M1917 Enfield Rifle
Secondary[]
Light machine guns(LMG)[]
M1941Johnson Light Machine Gun (J.LMG)
Pistols(Sidearms)[]
Colt M1911
Colt 1908 Pocket Hammerless(CPH)
Colt 1903 Pocket Hammerless(CPH)
High Standard HDM (With silencer)
M1917 Revolver
Smith & Wesson Model 10 (S&WM)
FP-45 Liberator
Melee Weapons
Ka-Bar
M1 bayonet
M1905 bayonet
M1942 bayonet
Mark I trench knife
V-42 Stiletto
United States Marine Raider Stiletto
Grenade[]
MK2 "Pineapple" handgrande
M67 "Baseball" handgrande
M26 "Lemon" handgrande
Rocket launchers[]
M1 Bazooka M9 Bazooka
Machine guns(MG)[]
M1917 Browning Machine Gun(BAR)
.30 Cal
Browning M2HB
Lewis gun
M1941 Johnson
[]
Others[]
Flamethowers[]
Artillery[]
M3 37 mm Anti-tank gun M1 57 mm Anti-tank gun
M5 3-inch Anti-tank gun
M1A2 37 mm Anti-aircraft gun
3-inch gun M1918
M1 90 mm Anti-aircraft gun
M101A1105 mm howitzer
M3 105 mm howitzer
M1 155 mm howitzer
M1 155 mm Long Tom(Field gun)
M115 howitzer
M1 8-inch gun
M1 240 mm howitzer
Tank[]
Light tank M2
Light tank M3
Light tank M5
Light tank M22 (Airbone)
Light tank M24
Medium tank M3
Medium tank M4 Sherman
Heavy Tank M26 Pershing
Corcodile
Crab tank