batery
 

Hello,
i want to have in my mp5sd6 classic army M120% systema spring, and i dont know batery, 8,4/2000 or 9,6/2000 ?

Wrong section, check the Upgrades section, read what's there first.
If you have a choice, avoid the Systema springs.

you could have simply answered him.

easy answer, your fine with that spring, and Id prolly run the 9.6v for a better ROF. gear will die sooner, but heck, the fun factor goes up.

Neither of your options.

8.4v 2400mAh would be my suggestion.

But if you ONLY have those two options available, personally, I would suggest the 8.4v 2000mAh. It can crank the M120 fine and your piston, gears and motor will last longer.

Two conflicting answers. Both personal opinions.

Use the benefits and cons given, and decide for yourself.

You mentioned elsewhere on the board that you do group orders from WGC.
Having an SD6, I would take a look at batteries that are specific for your model such as
http://www.wgcshop.com/pcart/shopper...281a6f60581590

It may have a higher voltage than the 8.4v but the 1500 mah will keep the ROF sane.
Think of it as a comprimise between the 2 batteries you had chosen.

The M120 is known to be a gear-chewer. Your choice. Take a PDI 150 with a normal voltage battery instead. Much less wear and tear.

And I hate answering what has been already written in the proper sections.

meh
if anything, Id stay awsome from PDI.
We got 2 PDI 150% that ran at 430-460fps