Now this has me interested as I'm having the same issue. Where would I find a sorbo pad for my gspec.

I had to make mine

Would these work? Which one?
http://www.airsoftstore.ca/index.php...=index&cPath=3

They are not cut to VSR size... the most common for a VSR are these:

http://www.wgcshop.com/wgc2008/main/...&view_choice=c

Question to the more experienced, can you safely stack these in a G-Spec to further reduce air volume?

Is that site ok to order from?

Why would you want to reduce the air volume? My vsr managed to magically be dead silent without an air brake or the sorbo pad with a 430mm barrel.
Adding sorbo is a poor and ineffective solution. It will foul the laminar airflow to the barrel and will cause problems later on. If you REALLY need to reduce the cylinder volume its best to Install an airbrake or make a port. But i really dont see why you'd need to

Wasn't that the solution post above by Drakker? I'm in the same boat as Blakez. Using an M150 spring is only yielding around 450 fps. Fps arguments aside, isn't there something wrong internally with that spring only pumping out 450 fps? If I can find someway to fix whatever's going on maybe I can decrease the spring. My Gspec is pretty much new rocking darn near the same upgrades as Blakez.

well take his word for it or google the appropriate fps for the spring
either way if theres a big air leak then that's definitely what's causing the excess noise
Mine started to get loud when it started leaking as well.

The key here is 430mm... the G-Spec has a 303mm barrel, so the huge amount of excess air is akin to a leak, it allows the piston to accelerate further once the BB is out and make a lot of noise. Either you port the cylinder or you get rid of the excess air using other means, such as sorboes. This is why I was asking if it's possible to stack the Laylax sorboes, it seems like an easy way to remove air volume. It would kind of act like the PDI short stroke cylinder head (now discontinued). But I wonder if the deformation of the sorbo pads at impact could bend/break the piston air break or affect the airflow.

In my case I have two VSR10, a cheap clone TSD with a 509mm barrel and a King Arms cylinder set that is dead silent (with the piston air break removed, replaced by a screw), and my Marui G-Spec with a PDI cylinder kit. With the PDI metal piston it is as loud as an AEG if not more. With the King Arms piston (a clone of the Laylax piston, but with a smaller diameter equal to the PDI piston) it is MUCH quieter, but still far from silent. The piston air break probably doesn't work well with the PDI cylinder head due to its conical air canal, but the rubber pad on the piston head does marvels to quiet the rifle.

Anyway, that's my experience. As far as I know, both of my VSR have good seal as they have very stable FPS output, so I would think that it's not responsible for my G-Spec's noise.

I had a G-spec.
The stock silencer covers all but 1.5" of the barrel, and it was dead silent using only 1.5" of the silencer, so you don't need the full length of it anyway.
Just put a 430mm barrel in the G-spec. Not like anyone ever takes that silencer off anyway lol

So just to make sure I understand. The 430mm fits the g-specs? But the barrel sticks into the silencer? Does the silencer still work at that point? Which barrel did you use?

Actually, I never use the silencer... I want a short rifle. Why pay more for a G-Spec if you are going to use a longer barrel and lose the size advantage?

Yes it fits, yes it sticks into the silencer, yes the silencer still works, and it was a laylax 6.03

If you use it as a short rifle, then you have your own problems to worry about lol
Just google short stroking VSR, I know amos short stroked his to about half the normal pull

Will look into that, thanks. I wish Amos was still around and would pop in this thread, but he hasn't posted anything for months.

I liked the look of the G-Spec :)