id like to add to this if I may;
I recently re-did some wiring on one of my aegs with some "for the time we'll call it improved" wiring, and long story short even though it was low-resistance. It was in fact a larger Outside diameter then then compared gauge. Why this is, is beyond me but I ended up having to take it all out because it was to thick for my gearbox. Even though it was rated at the same gauge. Not to mention it was incredibly weak and I could strip it using my fingers.
Just something to think about when getting to wire. Next time, I buy from an airsoft store such as airsoftstore.ca (love this place) and not a hobby store.