.45 ACP

.45 Automatic Colt Pistol known as .45 ACP in the game is a ammunition in surviv.io.

Trivia

 * As of now, none of the two weapons that use .45 ACP actually use the round in real-life, as the Peacemaker and Model 94 use the .45 Colt cartridge. There may be more weapons in the future, however.