This annual publication aims to provide a comprehensive overview of firearms available in 1979, serving as a reference for enthusiasts, collectors, and industry professionals. It details the specifications, features, and market availability of various handguns, rifles, and shotguns. The content is structured to offer a snapshot of the firearm landscape at the close of the 1970s.

As an annual reference publication, 'Guns Illustrated, 1979' would have been regarded as a valuable resource for firearm enthusiasts and collectors seeking detailed information on contemporary models. Its utility lies in its specific focus on the firearms available during that particular year, offering a historical record of the market. The inferred value is that of a specialized guide, likely consulted for purchasing decisions or historical research.