Delta Armory Programmable ETU Processor Unit for V2 Gearbox

If you are looking for an affordable way to add advanced functionality to your M4/AR-15 AEG, this is worth a look! The Delta Armory Programmable ETU Processor Unit for V2 Gearbox replaces your conventional trigger assembly and offers burst mode, binary trigger and pre-cocking, all of which can be programmed in using the fire controls of the AEG itself. This ETU should fit most M4/AR-15s which use a version 2 gearbox, but we only recommend this part for experienced techs and those in the know when it comes to Airsoft internal upgrades. The ETU is also pre-wired to a Deans/T-Plug battery connector in rear wired configuration and spade connectors for your motor, so you shouldn't need your soldering iron!