RocketFFL.com is the premier source for getting your FFL, becoming an SOT, and staying compliant with federal firearms rules and regulations.
The ATF's current National Firearms Act (NFA) Handbook has not been updated since 2009 and is not available in print/hard copy from the federal government.
This book includes all of the info provided by the ATF and also includes updated ATF Open Letters through August 1, 2017. You get all of the info that the ATF provides, plus the updated info! And, you get the fast shipping and great customer service from Amazon.com!
This is the same book that is provided to all students enrolled in RocketFFL's "Get Your FFL" course.