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 and features the following:n-Includes all the new 2021 makes and models, along with important pricing updates on many current and discontinued models.n-Information on over 60 NEW manufacturers/trademarks have been added since the last edition was published.n-2,512 pages featuring nearly 1,900 manufacturers/trademarks, with almost 30,000 gun model descriptions and over 180,000 values!n-An 80-page color Photo Percentage Grading System (PPGS) which makes firearms grading even easier and more accurate.nNow includes a Serialization Index to make finding serial number information even easier!nnThe Blue Book of Gun Values continues to be the Bible for buyers, sellers, collectors, and connoisseurs in the firearms industry! 2512 pp.