well find out what their FPS limits are and if your guns too hot then you should try to find a gun tech to change the spring for you I'm sure if you post on one of their game threads that you might want to attend that you need to find a gun tech before you can play then you might find one that way.

Thanks man. Any quality issues anyone knows about, hit me up.

google Click it is your friend. USE IT.

FPS limits at FR are 400 AEG and 450 Bolt Action
most indoor is caped at 350 all around
I have a JG M4 and I put on a CAVS so now its like an S system and the JG has been great for me so far without any problems even the stock mini last all day in the summer however you mileage may vary as some folks are BB hoses

Mini's don't come in 2000 mAh.

I use 8.4V 1500 mAh mini's with my M120 spring, and they work fine.

Stock the JG should be bang on FPS wise for outdoor. Just buy a couple of batteries. It all depends on how heavy you are on the trigger too. I ran my m249 on 1500 mah mini's, just needed to change the battery a few times cause I was hoseing al day.

cheapbatterypacks.com I bought mine from there the elite cells work great.

I own four JG ,s and think they are all great!

love the jgs just lack of trades great gun for building up though

Agreed!

Thanks guys. What spring/battery can I use to put me just under 350? Thanks

http://www.airsoftcanada.com/SpringChart.html

Amazing what a little searching will do :rolleyes:

Someone has PM'd my answer. Probably wasn't that hard either.

I had an S-system, and it never worked right, I redid the gearbox a few times to no avail. The only thing I never did was change the spring out.

I used 1100mah packs on all my oher guns, but they wouldn't fire the S-system. It would stick and bind half way back, and it would never work on semi, only full auto at about 2 bb's per second on a full battery, warm or cold.

Get a smaller spring in the M100 range and be safe, you'll pick up some rate of fire, alot actually. Velocity isn't everything, the gun has a long barrel and it's going to be accurate no matter what.

Bummer about it is that it has no room for a battery any bigger than a mini 8.4v. If later on down the road you want a larger output battery, you'll have to buy a decoy LAM to install your 9.6 packs into. 9.6's will be just fine in the stock JG if you choose this route.

Thats why I prefer regular M4's now if I want armalite, more room in the forward grip for bigger batteries.

I'm on an HK kick now, love my TSD MP5A5. :D

Have fun with the gun!

You could also go for a battery crane stock, if you like the look (I find them a lot more comfortable as well), and don't mind rewiring it to the rear.

yeah the crane stock is just taking advantage of the fact that the RS M4s have better more comfortable cheek piece stock that coincidentally could fit a battery