This large, 8 1/2" x 11" book combines complete coverage of both civilian sporter and military variations and late developments. It gives specs on such military developments as the Commando SMG, .223 Heavy Barrelled Automatic Rifle and 40mm grenade launchers. Every facet is covered: from use, detail disassembly and inspection to complete repair and maintenance for the various models. The complete story of the controversial M-16 family is contained in this large volume of over 100 pages with hundreds of detailed illustrations. A must book for every AR-15 owner, gunsmith, police armorer or military user of the M-16.