This article argues for a new theory of artifacts. Thereby, other theories are rejected. First, the article rejects a narrow theory of artifacts, which claims that artifacts are solid, material objects. Second, the internalist theory of artifacts, which holds that intentions are constitutive for artifacts, is rejected. Instead, this article argues that artifactuality of objects is possible even if a maker of a particular artifact do not have any determined intentional content. Third, a new theory of artifacts is outlined. This theory suggests that the concept of artifact can be defined in externalist terms, focusing on an object’s agent-caused assembly components and proper function, as constituted in a social context.