The .38 ACP, also known as the .38 Auto, was a cartridge introduced by Colt at the turn of the century. It was introduced for the Colt M1900. This article is a stub. You can help Gun Wiki by expanding it. Retrieved from "https://guns.fandom.com/wiki/.38_ACP?oldid=85348" Categories: Article stubs Military cartridges Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.