G&G RK 6mm V.3 gearbox upgrade questions

[paulwes83]

Hi all,

Just got some general upgrade questions for those who know about V.3 6mm gearboxes, particularly G&G RK series.

I want to upgrade my stock G&G RK47 gearbox, but just wanted to know if anybody can tell me what a 6mm gearbox can handle. I know Tokyo Marui v.3 gearboxes can be pretty nicely upgraded, but I want to know if there is an extent to the "upgradability".

I'm not thinking of doing anything whacky, but possibly a bore-up kit with an M130 spring and high torque motor with 200:100 steel gears and a mosfet.

Looking to do a Saiga AK sniper build.

Any input would be helpful

Thanks

NOTE: Before you say, go with a different gearbox with 7, 8 or 9mm bearings, please keep in mind that G&G RK V3 gearboxes are kind of proprietary in that they have a different external structure to use the G&G faux bolt.

[ThunderCactus]

Probably 550fps or 3000rpm no problem, depends what parts you put in...
use solid steel bushings, bearings are fairly weak in 6mm
probably don't need a bore up kit either
best cylinder/piston head to use is ARS and they don't come in bore-up
what kind of battery are you planning to use?
and what barrel?

up to 470fps, as long as it has a sorbo head, don't need to worry about anything breaking

[paulwes83]

Cool, I was planning on putting in oil retaining bushings anyways. I've read all over the place that 6mm bearings suck. lol Plus, I don't need the RPS since it'll be a DMR.

I'm looking to throw a 590-605mm barrel on it, so the bore-up is necessary isn't it?

Also, for battery, I haven't even thought about that yet. I'm looking for a snappy trigger response and good performance with .28mm or .3mm bbs.

Originally Posted by ThunderCactus

Probably 550fps or 3000rpm no problem, depends what parts you put in...
use solid steel bushings, bearings are fairly weak in 6mm
probably don't need a bore up kit either
best cylinder/piston head to use is ARS and they don't come in bore-up
what kind of battery are you planning to use?
and what barrel?

up to 470fps, as long as it has a sorbo head, don't need to worry about anything breaking

[ThunderCactus]

11.1v with a neo-magnet motor and a mosfet will be pretty snappy
barrel length, honestly anything past 420mm is a waste. This isn't real steel, barrel length does not equal range or accuracy.
And the fact you won't need a bore up kit with a shorter barrel means you'll be able to use the much higher quality ARS compression parts.

[paulwes83]

Awesome, thanks man. I wish I hadn't bought the bore-up parts now, but I'll hold off from the 650mm inner barrel and just use a standard size with a stabilizer.

Originally Posted by ThunderCactus

11.1v with a neo-magnet motor and a mosfet will be pretty snappy
barrel length, honestly anything past 420mm is a waste. This isn't real steel, barrel length does not equal range or accuracy.
And the fact you won't need a bore up kit with a shorter barrel means you'll be able to use the much higher quality ARS compression parts.

[paulwes83]

Go banana