Special thanks to : Kalash and Brass KALASH AND BRASS - Full30
Purchase this book at Barnes and Noble : Build Your Own AK (Vol. II): Building the Parts Kit by Nicoroshi, Guy Montag | NOOK Book (eBook) | Barnes & Noble®
Build Your Own AK (Vol. I): Headspacing & Virgin Barrel
by Nicoroshi, Guy Montag
I found that the book has a great deal of information. and even if you have been building for years, you will likely find something new in this book that might or might not help you speed up your builds.