4UAD Smart Airsoft are on a streak with their ASMR series with this episode about an ICS Airsoftt M4 that has ADV Brushless motor/ECU. This is an almost an hour video showing the swapping of internal parts and accessorising it as well as test of the resulting upgrade by doing a mag dump.

We're going bluetooth these days for trainign weapons and soon other AEGs might follow. Though we would recommend a mobile app for this Celcius iECU from Celcius Technology so players can make adjustments via their smartphones on the field rather than lug their laptops around... "In this video we are showing you the most advanced ECU in the world. We call it the iECU. For those who don’t know what ECU is, it is actually the 'Brain' of a Training Weapon.

ZShot took the new Ares Airsoft M4 Series which come with their easily programmable ECU and find out how it will perform in wet conditions... "For Part-II of our Ares M4 Torture Test, some users have asked how "water resistance" the programmable ECU / electronic circuits inside Ares's NextGEN gearboxes are. So we decided to put one to the test! The result may surprise you..."