PM Shinobii...he runs Mach1 and has or can get any ICS part (no metal receivers though...sorry). I think he was bringing in extra complete upper mechboxes just for this purpose....sell as a set with a rifle, indoor/outdoor package.
In his talks with ICS, the Turbo 3000 motor performs well with upgraded upper mechbox. Using it with the regular upper mechbox was "peppy".
If your battery is marginal now (i.e. sounds like it's dying or the motor is turning "slow") then it's not going to be any better with a faster upper.
|