The 42nd Edition contains over 2,500 pages of accurate information and up-to-date values for modern firearms and many major trademark antiques. With almost 1.9 million books in circulation worldwide, the Blue Book of Gun Values provides the most comprehensive collection of firearms information and pricing available. The book includes all the new 2021 makes and models, along with important pricing updates on many current and discontinued models with information on over 60 NEW manufacturers/trademarks that has been added since the last edition was published. The book now includes a Serialization Index to make finding serial number information even easier!