FM 100-2-3 should have been updated a long time ago. We took the best copy we could find and replaced most of the photographs because the originals were so dark as to be totally useless. Unfortunately, the text is small on some of the tables so as to be illegible but much of the data is obsolete anyway. We don't know how much interest there is in this manual but if there is enough interest, we will gladly rekey all the data as best we can and add new weapons that have since come on line. As an example, take a look at these on the next few pages. *1K17 Szhatie (1К17 Сжатие) Russian "Stiletto" Laser Tank *Combat Laser System (Peresvet) Russian Laser Cannon *T-14 Armata Main Battle Tank *T-15 Heavy Infantry Combat Vehicle *Kurganets-25 Light Tracked Armored Vehicle *2S35 Koalitsiya-SV 152-mm Self-Propelled Howitzer *VPK-7829 Bumerang Modular Infantry Wheeled Fighting Vehicle Why buy a book you can download for free? We print the paperback book so you don't have to. First you gotta find a good clean (legible) copy and make sure it's the latest version (not always easy). Some documents found on the web are missing some pages or the image quality is so poor, they are difficult to read. If you find a good copy, you could print it using a network printer you share with 100 other people (typically its either out of paper or toner). If it's just a 10-page document, no problem, but if it's 450-pages, you will need to punch 3 holes in all those pages and put it in a 3-ring binder. Takes at least an hour. It's much more cost-effective to just order the bound paperback from Amazon.com This book includes original commentary which is copyright material. Note that government documents are in the public domain. We print these paperbacks as a service so you don't have to. The books are compact, tightly-bound paperback, full-size (8 ½ by 11 inches), with large text and glossy covers. 4th Watch Publishing Co. is a SDVOSB. https://usgovpub.com