What three pieces of information are typically stamped on a modern shotgun?

The three pieces of information that are typically stamped on a modern shotgun include the gauge, maximum shell length, and type of choke. The gauge indicates the size of the shotgun; it is a critical factor for compatibility with ammunition. The maximum shell length provides important information about the longest shell that can be safely used in the shotgun without risking malfunctions or unsafe firing. The type of choke details the constriction of the shotgun's barrel, which impacts shot spread and pattern. This information is vital for the user to understand the capabilities and limitations of the shotgun in different shooting scenarios, such as hunting or target shooting.

In contrast, details like the type of stock, manufacturer information, and type of barrel, while important in context, do not typically form part of the standard stamped information on modern shotguns. The focus on gauge, maximum shell length, and choke type helps ensure safe and effective operation of the firearm.