The bolt of an Arisaka military rifle, which carries identifiers matching the main serial number which is on the receiverĪ gun serial number is a unique identifier assigned to a singular firearm. The serial number of this pistol is located under the dust cover on the frame, on the barrel, and on the slide. ( November 2020) ( Learn how and when to remove this template message) You may improve this article, discuss the issue on the talk page, or create a new article, as appropriate. The examples and perspective in this article may not represent a worldwide view of the subject.