A quick demo of the Phantom Extremis MK10 AEG from APS... "With the success of e-Silver Edge Gear box released in 2019, Airsoft player loves the gear box comes with micro switch trigger and a SDU1.0 chips. In the late 2019, APS introduced the second generation of e-silver edge gear box which was programmable, named SDU2.0 e-Silver Edgea Gear Box. This gear box was firstly used in EMG Noveske Gen 4 AEG Rifle.
