21ZSU-23-4
In the 1950s the Soviets developed ZSU-23-4, an armored vehicle which is “still regarded as posing a major threat” on the modern battlefield.
22M50 Ontos
The M50 Ontos (Greek for 'Thing') was an American light armored tracked anti-tank vehicle which mounted 6 M40 106 mm recoilless rifles as its main armament.
23M1911 pistol
The M1911 pistol served as the standard-issue sidearm for the United States Armed Forces from 1911 to 1985.