Booligan Airsoft is up to no good again, turning an perfectly ordinary M4A1 AEG into a precision airsoft rifle. But before he starts his project, he gives us an overview of the VFC E-Series M4A1 AEG... "I'll be turning this VFC E-Series M4A1 into a lightweight precision rifle, but before we do that, let's take a look at it in stock form."