Airsoft Technology Self-Paced Training Series Assembling a long barrel M4 Airsoft AEG

As part of our Airsoft Technology Self-Paced Training Series, this book is for intermediate level airsofters who want to assemble their own long barrel M4 AEG from scratch. By building a new TM compatible M4 from ground zero you are free from those limitations imposed by the manufacturer default configuration. We show you how to use metal body parts to build a very solid external structure for the rifle. We then show you how to integrate an air-tight hopup system and high performance V2 gearbox to complete the build process.