Originally Posted by Amos
Yea I know exactly what it is.. I could probably assemble and disassemble it blindfolded. Now let me spout things you don't know about the product you've got.
The m170 box (should) come with "ultra torque" gears and a half-toothed piston. Because of the really torquey gears and the weaker spring that was installed, you may have something refereed to as "over-cycle" this is when the gears carry too much momentum and start the pistol-pull cycle after the point where it should stop.
Using a 12V battery would make your gun cycle so quickly that your sector gear would catch the middle of the piston and rip the teeth off. I wouldn't even use a 9.6V, with the ultra torques and the weaker spring you may still get over cycle on a 9.6
Use an 8.4 large battery... or a 9.6 mini. Watch out for your trigger contacts, those systema boxes like to char, pit and burn.
See.. I tried to give you the easier answer.
haha no that one was good, so to make the m120 work good in the m170 gearbox itll need a way smaller battery?