AirsoftBB reviews the GATO Airsoft M4 M-LOK 15-inch Full Metal AEG whoch is available in Chile via Airsoft Total. As its name says, this uses the M-LOK System with a Reinforced V2 Gearbox with QD spring system allow you to adjust the power of the AEG. It has a micro switch trigger for better trigger control and comes with a 300-round high capacity AEG magazine.