Publisher's Synopsis
This new book is for intermediate level airsofters who want to assemble their own M4 AEG rifle 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 TM compatible metal body parts to build a very solid external for the gun. We then show you how to integrate an air-tight hopup system and high performance V2 gearbox to complete the build process.