AMERICAN

The HSTV-L was a 1980s U.S. light tank prototype with a 105 mm gun, high mobility, and air-transportable design, never mass-produced.

The XM800T was a 1970s U.S. experimental tracked scout vehicle with a 20 mm autocannon, amphibious capability, and three crew, never mass-produced.

The M3A3 Bradley is a reconnaissance Bradley with a 25 mm cannon, TOW missiles, and upgraded armor and electronics.

The XM803 was a 1970s U.S. light tank prototype with a 152 mm gun/launcher, never mass-produced.

The M1A2 SEP v2 is an upgraded Abrams tank with improved armor, advanced electronics, a 120 mm gun, and a crew of four.

The M1A2 Abrams is a modern U.S. main battle tank with a 120 mm smoothbore gun, advanced armor, electronics, and a crew of four. It features improved fire-control, communications, and survivability compared to the original M1.

The M103 was a 1950s U.S. heavy tank with a 120 mm gun, thick armor, and a crew of five, retired in the 1970s.

The T1E1 was a 1930s U.S. light tank prototype, built to test armor and mobility, never mass-produced.

The T26E5 was a WWII U.S. heavy tank prototype with thicker armor and a 90 mm gun, never mass-produced.

The XM975 was a 1970s U.S. experimental armored vehicle for anti-tank/fire-support roles, never mass-produced.

.The American ADATS is a dual-purpose missile system for engaging aircraft and tanks, mounted on a mobile tracked or wheeled vehicle.

The CLAWS/TADS was a U.S. Marine Corps Humvee-based air-defense system with AMRAAM missiles and targeting optics, canceled before service.

The LOSAT was a U.S. high-speed, kinetic-energy anti-tank missile system, never mass-produced.

T95 often refers to two U.S. prototypes: the T95 medium tank (experimental medium tank developed 1955–59) and the T28 Super‑Heavy (originally redesignated 105mm Gun Motor Carriage T95 during WWII). Both remained prototype projects. 

The M50 was a 1950s U.S. Patton upgrade with a 90 mm gun, better armor, and engine, widely exported but limited in U.S. service.