I've got a 9.6v 2300mAh nunchuck battery (from
Velocity Arms) that fits nicely inside the rear tube. I'll have to cut down the rear stock support to fit it though. The stock TM one was shorter. I'll post some pics when I get to that part...
As for the 'tango down' grip, since I'm not familiar with M4 parts, I'll have a look on google... thanks
