[mcguyver]

Electronic control of AEGs is not a new thing. Marui tried it once with the basic burst chip for the 550/551 and Systema uses quite advanced electronics to control their guns. However, these guns will not run as designed without the electronics and failure of any part of the electronics will render the gun unusable.

Using commutator pole reversal for shot counting is intriguing, but for the average AEG repair tech or end user leads to a simple problem, gear change. If you alter the gear ratio of the mechbox (going from standard ratio to torque-up or high speed) renders any counting useless and inaccurate. The only way to combat this would be to count revolutions of the sector gear using an IR emitter and sensor and drilling a hole in the sector gear. Then no matter what ratio you use for gears, you will always get the correct counting occurring.

That's the way Systema does it for the PTW in order to give 3-burst or full auto or both with a simple mod. It could also allow for proper gearbox stoppage at the end of full auto firing and then for semi-auto to eliminate the initial spool-up time if the gearbox doesn't stop at the optimium spot in the cycle to allow for a near-instantaneous fire when the trigger is pressed.