It might seem an unusual time for a group of anarchists to create a how-to manual on firearms. While anarchists have become increasingly present in a wide range of struggles and achieved drastically more visibility in the last 10 years relative to previous decades, our "movement" is currently in a stage of rebuilding and reevaluation of priorities. ... The reason for beginning to share firearms skills now is that the ability to conduct successful armed actions, even on a small scale, does not emerge overnight. ...

the ability to safely and effectively use a gun, in concert with others, takes time to learn.

from the introduction...

TOC includes:

Gun Terminology and Anatomy,

Types of Guns,

On Ammunition,

Gun Safety,

An Introduction to Military-Style Rifles,

etc.