This should be the first book that anyone even so much as interested in the AR15/M16 weapons platform firearms should buy. Written so that virtually anyone can understand it, with pictures of virtually every step for those that can't, this book covers completely detail stripping the AR15 down to every nut, bolt, pin, and screw and how to reassemble these parts back into a working firearm.
Of equal importance, this book includes the technical specifications for the weapons system in terms of torque requirements for the barrel nut, castle nut, carrier key screws, etc.
Chapter 1 Rifle Specifications Chapter 2 Direct-Impingement Gas System Theory Chapter 3 Ballistics Chapter 4 Loading Sequence Chapter 5 BRM in a Nutshell Chapter 6 Malfunctions Chapter 7 Zeroing Chapter 8 Maintenance, Cleaning, and Lubrication Chapter 9 Training Tips Annex A Sight Adjustments Annex B Common Optics Annex C Leading a Moving Target Annex D Mindset
This book is an excellent resource in terms of methodology and techniques for both basic weapon manipulations (like loading, reloads, transitions, etc.) as well as various shooting positions both conventional (standing, prone, shooting on the move) and unconventional (urban prone, rollover prone, etc.). There is also a section in weapon maintenance and one on gear selection that covers optics, slings, and the like.