To understand how something works enables you to properly maintain it to give reliable and long lasting service. It also provides a visual aid in diagnosing problems, and the parts associated with that problem to know how to repair it. In firearms, for many years, the training a cutaway gives you is an inside look as to how the weapon truly functions.

The cutaway reveals how moving parts work together to make this complex mechanism function. You have a visual experience in fire, unlock, extract, eject, cock, feed, chamber and lock. You see the interaction of the sears on the trigger, hammer and disconnector. The gas system is revealed and you can see its path from the barrel, into the gas port, through the gas tube, into the bolt carrier key and finally into the expansion chamber. This video takes you inside the AR15 to see how it functions.