Tang shows you the Delta KM EC1 EC2 which is part of the Classic Army Gen 2 ECS Skirmish Series in this Fox Airsoft video... "Classic Army has upgraded their entire line of Skirmish Series AEGs which is the perfect beginner airsoft gun for you. The Gen 2 ECS Skirmish series gearbox has been upgraded to be stronger and feature a programmable trigger. The gun now shoots better than ever before and comes with a standard charger and battery all for $184.99.