2013 Airsoft Technology Self-paced Training Series: Introduction to M4 AEG Metal Body & Gearbox Replacement

This training book has been developed from the ground up for beginners who know little about Airsoft AEG technology. As part of our Airsoft Technology Self-Paced Training Series, this book gives an introduction to the basic M4 AEG architecture as well as the know-hows on gearbox/metal body replacement. This edition also includes consideration on the placement of the FET device. The APS FET device for V2 gearbox and the latest generation gearbox are also covered. We believe that this book and its support materials have everything you need for an informative, interesting, challenging and entertaining Airsoft educational experience.