Originally Posted by L473ncy
G&G and CA make a weird V7 hybrid thing that's not really "TM compatible" so I would avoid them but out of the box they're not bad.
The parts really aren't that hard to find. Gears, ARL, piston, piston head, spring and cylinder are all V2/3 compatible. Short motor, V3 spring guide, AUG hop up unit and air nozzle. Tappet plate, trigger unit, cylinder head and motor housing are proprietary, but Mach1 carries the tappet plate, and cylinder head, Lonex makes an aluminum one piece cylinder head for it, and Airsoftparts carries the motor housing.
And the mags really aren't THAT expensive, I got my CA midcaps for 17 each and they all feed fine.