Alright, this took a helluva lot of time to finish, lots of $$, but it was worth it. I'll be using this at my university's Airsoft organization next year. Lemme know what you think!
The hardest part was probably the stock conversion... I had to use a Dremel multiple times to cut the tube, holes, and everything else, then redo the wiring from the gearbox to direct it towards the battery in the stock.
Click the pics for higher-res